{"title":"B58 S58 Cylinder Head Upgrades","description":"","products":[{"product_id":"bmw-toyota-b58-gen2-camshaft-set","title":"BMW Toyota B58 Gen2 Camshaft Set | Kelford Cams","description":"\u003ch2\u003e\u003cstrong\u003eBMW Toyota B58 Gen2 Camshaft Set by Kelford Cams\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eBMW has released these engines in several revisions. To simplify, the Kelford team has named these revisions Gen 1, Gen 1.5 \u0026amp; Gen 2. Please review B58 Engine Compatibility \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/KEL-CSS-B58.pdf?v=1688841689\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eHere\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eIf you are unsure of which generation your engine is, please \u003ca href=\"mailto:Sales@5150AutoSport.com\" rel=\"noopener noreferrer\" target=\"_blank\"\u003econtact our sales team\u003c\/a\u003e \u0026amp; they will ensure you get the correct camshafts\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003ePlease note: \u003c\/em\u003e\u003c\/strong\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eAll camshafts must be installed by a professional engine builder\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eA | BMW Toyota B58 Gen2 Camshaft Set | Stage 1\u003c\/h2\u003e\u003cp\u003eStreet | Strip | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e270° \/ 268° - 10.30mm \/ 10.15mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e270°\/268° cams to suit BMW's Gen 2 B58 engine with bolt on intake, exhaust and turbo upgrades. For an engine producing around 550-750hp running a 58-68mm turbo. Still maintains full use of Valvetronic and Double VANOS for good throttle response and wide power band. Must have valve spring upgrade, \u003cstrong style=\"color: rgb(247, 4, 4);\"\u003eKelford Cams recommend valve spring KVS57-BT\u003c\/strong\u003e. \u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eB | BMW Toyota B58 Gen2 Camshaft Set | Stage 2 \u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e285°\/280° stage 2 racing cams for professionally built BMW Gen 2 B58 engine making 750hp-1000hp. Turbo sizing 62-72mm. Great with aftermarket intake plenums. Still can maintain full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body. Must have valve spring upgrade, \u003cstrong style=\"color: rgb(247, 7, 7);\"\u003eKelford Cams recommend valve spring KVS57-BT.\u003c\/strong\u003e  \u003c\/p\u003e\u003ch2\u003eC | BMW Toyota B58 Gen2 Camshaft Set | Stage 3\u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e288° Stage 3 drag racing cams for professionally built B58 Gen 2 engines making 1200hp+. Turbo sizing 72mm+ on high boost. Fuel type ethanol blend or methanol. Must use aftermarket high flow plenum with a throttle body conversion. Recommend locking the Valvetronic system at 100% swing. Must have valve spring upgrade, \u003cstrong style=\"color: rgb(242, 9, 9);\"\u003eKelford Cams recommend valve spring KVS57-BT\u003c\/strong\u003e. \u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e258-A, 258-B, 258-C\u003c\/p\u003e","brand":"Kelford Cams","offers":[{"title":"270° \/ 268° - 10.30mm \/ 10.15mm Valve Lift","offer_id":45640162017587,"sku":"KEL-258-A","price":1399.99,"currency_code":"USD","in_stock":false},{"title":"285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift","offer_id":45640162050355,"sku":"KEL-258-B","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift","offer_id":45640162115891,"sku":"KEL-258-C","price":1399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-Shaft-Set-for-BMW-Toyota-B58-Gen-2.webp?v=1711653043"},{"product_id":"bmw-b58-gen1-5-camshafts","title":"BMW B58 Gen1.5 Camshafts | Kelford Performance Camshaft Set","description":"\u003ch2\u003e\u003cstrong\u003eBMW B58 Gen1.5 Camshafts by Kelford Cams\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eBMW has released these engines in several revisions. To simplify, the Kelford team has named these revisions Gen 1, Gen 1.5 \u0026amp; Gen 2. Please review B58 Engine Compatibility \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/KEL-CSS-B58.pdf?v=1688841689\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eHere\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eIf you are unsure of which generation your engine is, please \u003ca href=\"mailto:Sales@5150AutoSport.com\" rel=\"noopener noreferrer\" target=\"_blank\"\u003econtact our sales team\u003c\/a\u003e \u0026amp; they will ensure you get the correct camshafts\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003ePlease note: \u003c\/em\u003e\u003c\/strong\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eAll camshafts must be installed by a professional engine builder\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eA | BMW B58 Gen1.5 Camshafts | Stage 1\u003c\/h2\u003e\u003cp\u003eStreet | Strip | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e270° \/ 268° - 10.30mm \/ 10.15mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e270°\/268° cams to suit BMW's Gen 1.5 B58 engine with bolt on intake, exhaust and turbo upgrades. For an engine producing around 550-750hp running a 58-68mm turbo. Still maintains full use of Valvetronic and Double VANOS for good throttle response and wide power band. \u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eMust have valve spring upgrade.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\u003ch2\u003eB | BMW B58 Gen1.5 Camshafts | Stage 2 \u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e285°\/280° stage 2 racing cams for professionally built BMW Gen 1.5 B58 engine making 750hp-1000hp. Turbo sizing 62-72mm. Great with aftermarket intake plenums. Still can maintain full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body. \u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eMust have valve spring upgrade.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\u003ch2\u003eC | BMW B58 Gen1.5 Camshafts | Stage 3\u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e288° Stage 3 drag racing cams for professionally built B58 Gen 1.5 engines making 1200hp+. Turbo sizing 72mm+ on high boost. Fuel type ethanol blend or methanol. Must use aftermarket high flow plenum with a throttle body conversion. Recommend locking the Valvetronic system at 100% swing. \u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eMust have valve spring upgrade.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Kelford Cams","offers":[{"title":"270° \/ 268° - 10.30mm \/ 10.15mm Valve Lift","offer_id":45644452135219,"sku":"KEL-2-257-A","price":1399.99,"currency_code":"USD","in_stock":false},{"title":"285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift","offer_id":45644452167987,"sku":"KEL-2-257-B","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift","offer_id":45644452200755,"sku":"KEL-2-257-C","price":1399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-Shaft-Set-for-BMW-Toyota-B58-Gen-1.5.webp?v=1711652935"},{"product_id":"bmw-b58-gen1-camshaft-set","title":"BMW B58 Gen1 Camshaft Set | Kelford Performance Cams","description":"\u003ch2\u003e\u003cstrong\u003eBMW B58 Gen1 Camshaft Set by Kelford Cams\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eBMW has released these engines in several revisions. To simplify, the Kelford team has named these revisions Gen 1, Gen 1.5 \u0026amp; Gen 2. Please review B58 Engine Compatibility \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/KEL-CSS-B58.pdf?v=1688841689\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eHere\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eIf you are unsure of which generation your engine is, please \u003ca href=\"mailto:Sales@5150AutoSport.com\" rel=\"noopener noreferrer\" target=\"_blank\"\u003econtact our sales team\u003c\/a\u003e \u0026amp; they will ensure you get the correct camshafts\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003ePlease note: \u003c\/em\u003e\u003c\/strong\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eAll camshafts must be installed by a professional engine builder\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eA | BMW B58 Gen1 Camshaft Set | Stage 1\u003c\/h2\u003e\u003cp\u003eStreet | Strip | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e270° \/ 268° - 10.30mm \/ 10.15mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e270°\/268° cams to suit BMW's Gen 1 B58 engine with bolt on intake, exhaust and turbo upgrades. For an engine producing around 550-750hp running a 58-68mm turbo. Still maintains full use of Valvetronic and Double VANOS for good throttle response and wide power band. \u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eMust have valve spring upgrade.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\u003ch2\u003eB | BMW B58 Gen1 Camshaft Set | Stage 2 \u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e285°\/280° stage 2 racing cams for professionally built BMW Gen 1 B58 engine making 750hp-1000hp. Turbo sizing 62-72mm. Great with aftermarket intake plenums. Still can maintain full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body. \u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eMust have valve spring upgrade.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\u003ch2\u003eC | BMW B58 Gen1 Camshaft Set | Stage 3\u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e288° Stage 3 drag racing cams for professionally built B58 Gen 1 engines making 1200hp+. Turbo sizing 72mm+ on high boost. Fuel type ethanol blend or methanol. Must use aftermarket high flow plenum with a throttle body conversion. Recommend locking the Valvetronic system at 100% swing. \u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eMust have valve spring upgrade.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Kelford Cams","offers":[{"title":"270° \/ 268° - 10.30mm \/ 10.15mm Valve Lift","offer_id":45672516944179,"sku":"KEL-257-A","price":1399.99,"currency_code":"USD","in_stock":false},{"title":"285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift","offer_id":45672516976947,"sku":"KEL-257-B","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift","offer_id":45672517009715,"sku":"KEL-257-C","price":1399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-Shaft-Set-for-BMW-Toyota-B58-Gen-1.webp?v=1711652878"},{"product_id":"bmw-s58-camshafts-kelford","title":"S58 Camshafts | Kelford Cams for BMW","description":"\u003ch2\u003e\u003cstrong\u003eS58 Camshafts | Kelford Cams for BMW Performance\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003ePlease note: \u003c\/em\u003e\u003c\/strong\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eAll camshafts must be installed by a professional engine builder\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eA | BMW S58 Camshafts | Stage 1\u003c\/h2\u003e\u003cp\u003eStreet | Strip | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e288° \/ 268° - 10.30mm \/ 10.15mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBMW M Series camshafts designed for S58 engines with bolt on intake, exhaust and turbo upgrades. For engines producing around 600-850hp running a 60-68mm turbo. Maintains full use of Valvetronic and Dual VANOS for great throttle response and wide power band. \u003cstrong\u003e\u003cem\u003eMust have valve spring upgrade. \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eB | BMW S58 Camshafts | Stage 2 \u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e292° \/ 280° - 10.40mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBMW M Series Racing Camshafts professionally built BMW S58 engines making 800hp-1400hp. Turbo sizing 66-75mm. Great with aftermarket intake plenums. Maintains full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body. \u003cstrong\u003e\u003cem\u003eMust have valve spring upgrade. \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eNote:\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e Must check intake intermediate rockers for clearance to the new racing cam lobe; OEM pressed steel rockers have sharp edges which may damage the bigger cam lobe. Trim and deburr as necessary.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eC | BMW S58 Camshafts | Stage 3\u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e298° \/ 288° - 10.40mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBMW M Series Stage 3 drag racing cams designed for professionally built S58 engines producing 1400hp+. Turbo sizing 76mm+ on high boost. Ethanol blend or methanol.  \u003cstrong\u003e\u003cem\u003eMust have valve spring upgrade.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003ePlease Note:\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e Must check intake intermediate rockers for clearance to the new racing cam lobe; OEM pressed steel rockers have sharp edges which may damage the bigger cam lobe. Trim and deburr as necessary.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eAll engine modifications should be performed by a qualified professional to ensure a proper and safe installation process and a reliable, optimally performing engine.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003e358-A, 358-B, 358-C\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eSee Also\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/S58B30-Valve-Spring-Fitment.pdf?v=1703202628\" rel=\"noopener noreferrer\" target=\"_blank\" style=\"color: rgb(255, 42, 0);\"\u003eBMW S58 Valve Spring Fitment Guide\u003c\/a\u003e\u003c\/p\u003e\u003ciframe class=\"ql-video\" frameborder=\"0\" allowfullscreen=\"true\" src=\"https:\/\/www.youtube.com\/embed\/eLj0tORFINs?si=o-PsvwsJMajI7j9Z\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e2023-Present  G87  M2\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e2021-Present  G80  M3\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e2021-Present  G82\/G83  M4\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e2019-Present  F97  X3M\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e2019-Present  F98  X4M\u003c\/p\u003e","brand":"Kelford Cams","offers":[{"title":"A","offer_id":47529453617459,"sku":"KEL-358-A","price":1399.99,"currency_code":"USD","in_stock":false},{"title":"B","offer_id":47529453650227,"sku":"KEL-358-B","price":1399.99,"currency_code":"USD","in_stock":true},{"title":"C","offer_id":47529453682995,"sku":"KEL-358-C","price":1399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-Shaft-Set-for-BMW-S58.webp?v=1711653208"},{"product_id":"cylinder-head-service-bmw-s58","title":"S58 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW S58 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"835\" data-start=\"767\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-end=\"1353\" data-start=\"1350\"\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=S58\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1522\" data-start=\"1475\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"1834\" data-start=\"1524\"\u003eIncludes everything from \u003cstrong data-end=\"1560\" data-start=\"1549\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"766\" data-start=\"703\"\u003e\u003cstrong data-end=\"764\" data-start=\"707\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1977\" data-start=\"1906\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-end=\"2938\" data-start=\"1979\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-end=\"1417\" data-start=\"837\"\u003e\u003cstrong\u003e\u003cem data-end=\"1417\" data-start=\"1353\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-end=\"1417\" data-start=\"837\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Stage 1","offer_id":53012246855987,"sku":"5150-CH-S58-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2","offer_id":53012246888755,"sku":"5150-CH-S58-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Pro-Xtreme","offer_id":53012246921523,"sku":"5150-CH-S58-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Performance-Machined-BMW-S58-Cylinder-Head.webp?v=1723574342"},{"product_id":"cylinder-head-service-bmw-b58","title":"B58 Cylinder Head Service by 5150 AutoSport","description":"\u003cp\u003e\u003cstrong\u003e5150 AutoSport Performance Cylinder Head Services for BMW Toyota B58 Engines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003ca href=\"mailto:sales@5150autosport.com\"\u003econtact our sales team\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eInvesting in a performance cylinder head service is crucial for optimizing engine potential in performance builds. We offer three levels of service to meet your budget and build goals, from OEM refresh to full race-level machining:\u003c\/p\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 1 – OEM Refresh (Rebuild \u0026amp; Reliability Focused)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"767\" data-end=\"835\"\u003e\u003cem\u003eIdeal for stock or mildly modified engines needing a proper refresh.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003eThe cylinder head is fully disassembled, cleaned, and soda blasted to remove carbon and contaminants. Valve guides are measured and inspected, with new guides installed if needed, then precision reamed and honed for proper clearance. A 5-angle valve job is performed to restore sealing efficiency, followed by resurfacing to ensure a flat, true mating surface. New Viton valve seals are installed, the head is fully reassembled using OEM valves, guides, springs, and retainers, and pressure tested after assembly.\u003cbr data-start=\"1350\" data-end=\"1353\"\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eOptional service upgrade: add a \u003ca href=\"https:\/\/5150autosport.com\/collections\/valve-spring-kits?filter.v.m.mm-google-shopping.custom_label_0=B58\u0026amp;sort_by=best-selling\"\u003ehigh-performance valve spring kit\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 1 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInspect and Measure Valve Guides\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval and Installation of new Guides, if necessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003eStage 2 – \u003cspan\u003ePerformance Valvetrain Upgrade\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003e\u003cem\u003eFor higher RPM builds and increased durability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1524\" data-end=\"1834\"\u003eIncludes everything from \u003cstrong data-start=\"1549\" data-end=\"1560\"\u003eStage 1\u003c\/strong\u003e\u003cstrong\u003e, plus upgraded high-performance valves, a high-performance valve spring kit, and new valve locks\/keepers.\u003c\/strong\u003e This stage improves valvetrain stability, reduces the risk of valve float, and prepares the head for more aggressive use while retaining OEM-style machining processes.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003eStage 2 at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Angle Valve Job\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"703\" data-end=\"766\"\u003e\u003cstrong data-start=\"707\" data-end=\"764\"\u003ePro-Xtreme – All-Out Performance Cylinder Head Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1906\" data-end=\"1977\"\u003e\u003cem\u003eDesigned for high-horsepower, forced-induction, and competition builds.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe cylinder head undergoes complete disassembly, cleaning, and in-depth inspection, including crack, leak, and pressure testing. Factory valve guides are replaced with high-performance guides, then precision reamed and honed for extreme heat and RPM stability. \u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eCNC multi-angle porting is performed on both intake and exhaust ports to improve airflow consistency across all cylinders. A CNC multi-angle intake valve job and radius exhaust valve job optimize flow into and out of the combustion chamber. Valves are unshrouded to further enhance airflow, and preventative chamfering is applied in critical areas to reduce stress concentrations.\u003c\/p\u003e\n\u003cp data-start=\"1979\" data-end=\"2938\"\u003eThe mating surface is trueness checked, resurfaced, and verified again for perfect sealing. After machining, the head is thoroughly washed and assembled using balanced and blueprint-matched high-performance valves, along with balanced valve springs and retainers for precise valve control and long-term durability.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1417\"\u003e\u003cstrong\u003e\u003cem data-start=\"1353\" data-end=\"1417\"\u003ePro-Xtreme at a Glance: \u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eDisassemble and Clean\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eSoda Blast\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eRemoval of OEM Valve Guides\u003c\/li\u003e\n\u003cli data-start=\"837\" data-end=\"1417\"\u003eInstallation of Performance Valve Guides\u003c\/li\u003e\n\u003cli\u003eReam and Hone Valve Guides\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Intake Porting\u003c\/li\u003e\n\u003cli\u003e5-Axis CNC Exhaust Porting\u003c\/li\u003e\n\u003cli\u003eCNC Combustion Chamber Modification\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Intake Valve Job\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e5-Angle CNC Exhaust Valve Job\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUnshrouding of Valves\u003c\/li\u003e\n\u003cli\u003ePreventative Chamfering in Potential Problem Areas\u003c\/li\u003e\n\u003cli\u003eTrueness Checking of Mating Surface\u003c\/li\u003e\n\u003cli\u003eResurfacing\u003c\/li\u003e\n\u003cli\u003eFinal Wash\u003c\/li\u003e\n\u003cli\u003eInstall New Viton Valve Seals\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Spring Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Kit\u003c\/li\u003e\n\u003cli\u003eInstall New High Performance Valve Keepers\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eSetting of Seat Pressure\u003c\/li\u003e\n\u003cli\u003eFull Reassembly\u003c\/li\u003e\n\u003cli\u003ePressure Testing after Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eRead more about our Pro-Xtreme service \u003ca href=\"https:\/\/5150autosport.com\/blogs\/product-faq\/5150-pro-xtreme-cylinder-head-services\"\u003ehere\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/F0_2xENSHKY?si=NiO2ktNtUdHj0CxZ\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B58 Gen 1 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F20\/F21     M140i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F22\/F23     M240i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     F30\/F31     340i \/ 340i xDrive\u003cbr\u003e2016-2019     F34     340i GT \/ 340i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2020     F32\/F33\/F36     440i \/ 440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     G30\/G31     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G32     640i GT \/ 640i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     G11\/G12     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2019     G02     X4 M40i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G43     M240i \/ M240i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G20\/G21     M340i \/ M340i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G22\/G23\/G26     M440i \/ M440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G29     Z4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30\/G31 LCI     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G32 LCI     640i GT \/ GT 640i xDrive \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G11\/G12 LCI     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G02     X4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     X5 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G06     X6 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G07     X7 xDrive40i\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eALPINA B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G20\/G21     B3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G22     B4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30     B5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G07     XB7\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eToyota B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     GR Supra 3.0     \u003cbr\u003e2020-Present     GR Supra 3.0 Premium     \u003cbr\u003e2021-Present     GR Supra 3.0 A91 Edition\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Gen 1 \/ Stage 1","offer_id":50109213212979,"sku":"5150-CH-B58-G1-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Gen 1 \/ Stage 2","offer_id":53012253147443,"sku":"5150-CH-B58-G1-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Gen 1 \/ Pro-Xtreme","offer_id":53012253180211,"sku":"5150-CH-B58-G1-XT","price":6000.0,"currency_code":"USD","in_stock":true},{"title":"Gen 2 \/ Stage 1","offer_id":50109213245747,"sku":"5150-CH-B58-G2-S1","price":1400.0,"currency_code":"USD","in_stock":true},{"title":"Gen 2 \/ Stage 2","offer_id":53012253212979,"sku":"5150-CH-B58-G2-S2","price":4000.0,"currency_code":"USD","in_stock":true},{"title":"Gen 2 \/ Pro-Xtreme","offer_id":53012253245747,"sku":"5150-CH-B58-G2-XT","price":6000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-B58-Performance-Cylinder-Head-Modification-Service.webp?v=1722529668"},{"product_id":"b58-combustion-chamber-upgrade","title":"B58 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW and Toyota B58 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing clean, disassembled core. If you need help sourcing a core, please \u003cspan\u003e\u003ca href=\"mailto:sales@5150AutoSport.com\" style=\"color: rgb(255, 42, 0);\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our brand new, state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW \/ Toyota B58 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW B58 Gen 1 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F20\/F21     M140i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     F22\/F23     M240i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     F30\/F31     340i \/ 340i xDrive\u003cbr\u003e2016-2019     F34     340i GT \/ 340i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2020     F32\/F33\/F36     440i \/ 440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     G30\/G31     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G32     640i GT \/ 640i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     G11\/G12     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2019     G02     X4 M40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G20\/G21     M340i \/ M340i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G22\/G23\/G26     M440i \/ M440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G29     Z4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30\/G31 LCI     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G32 LCI     640i GT \/ GT 640i xDrive \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G11\/G12 LCI     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G02     X4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     X5 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G06     X6 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G07     X7 xDrive40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eALPINA B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G20\/G21     B3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G22     B4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30     B5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G07     XB7\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eToyota B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     GR Supra 3.0     \u003cbr\u003e2020-Present     GR Supra 3.0 Premium     \u003cbr\u003e2021-Present     GR Supra 3.0 A91 Edition\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986091483443,"sku":"5150-CCM-B58","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-Toyota-B58-Ported-Cylinder-Head-Service.webp?v=1722010541"},{"product_id":"s58-combustion-chamber-upgrade-service","title":"S58 Combustion Chamber Upgrade Service","description":"\u003ch3\u003e\u003cstrong\u003e5150 AutoSport Combustion Chamber Upgrade Service for BMW S58 Engines\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note that price is based on customer providing core. If you need help sourcing a core, please \u003cspan\u003e\u003ca style=\"color: rgb(255, 42, 0);\" href=\"mailto:sales@5150AutoSport.com\"\u003econtact our sales team\u003c\/a\u003e\u003c\/span\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine performance for street or track applications. \u003cstrong\u003e\u003cem\u003eCompleted on our state-of-the-art Rottler 5-Axis CNC machines, this 5150 service is performed to optimize the flow characteristics of the combustion chambers, leading to improved engine performance.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCNC Combustion Chamber Re-Shaping Process:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. 3D Scanning and Modeling:\u003c\/strong\u003e The existing combustion chamber is scanned to create a detailed 3D model. This allows 5150 engineers to analyze the current shape and identify areas for improvement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Design Optimization:\u003c\/strong\u003e Our engineers then design an optimized combustion chamber profile, reshaping the chamber with a focus on improving airflow, fuel atomization, and combustion efficiency. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. CNC Machining\u003c\/strong\u003e: Using the 3D model and optimized design, our Rottler CNC machine precisely cuts and reshapes the combustion chambers to the desired specifications, then smooths all surfaces for optimal air flow. \u003cem\u003eThis process ensures consistent and repeatable results across all cylinders.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4. Final Inspection and Testing:\u003c\/strong\u003e After machining, the cylinder head is inspected to ensure that the modifications meet our exact tolerances. The modified head may also be flow-bench tested to quantify the improvements in airflow and combustion efficiency.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePerformance Benefits of Combustion Chamber Re-Shaping:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Enhanced Airflow:\u003c\/strong\u003e By optimizing the shape of the combustion chamber, CNC machining improves the flow of air and fuel into and out of the chamber. This allows for efficient cylinder filling for increased power output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Improved Combustion Efficiency:\u003c\/strong\u003e Smoother surfaces and optimized shaping reduce turbulence and promote better air and fuel mixing, leading to more complete and efficient combustion. This can result in more power, better fuel efficiency, and reduced emissions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Consistency: \u003c\/strong\u003eCNC machining ensures that all combustion chambers are identical for balanced performance across all cylinders. This consistency is crucial for high-performance engines where even minor variations affect overall performance.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eBenefits for BMW S58 Engines:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e1. Power and Torque Gains:\u003c\/strong\u003e For these specialized BMW engines, particularly those used for high-performance applications, CNC combustion chamber reshaping offers increases in power and torque by improving the efficiency of the engine’s combustion process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. Enhanced Throttle Response:\u003c\/strong\u003e Optimized combustion chambers offer more immediate and sharper throttle response, improving the driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. Compatibility with Other Modifications:\u003c\/strong\u003e CNC combustion chamber reshaping complements other performance upgrades, including high-performance camshafts, valvetrain upgrades, single-turbo conversions, or performance exhaust systems, by ensuring that the engine can fully utilize the benefits of these modifications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e\n\u003c!----\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":49986101182771,"sku":"5150-CCM-S58","price":600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Cylinder-Head-Chamber-Modification-Service.webp?v=1722531375"},{"product_id":"b58-valve-seat-replacement","title":"BMW \/ Toyota B58 Performance Valve Seat Replacement by 5150 AutoSport","description":"\u003ch3\u003e\u003cstrong\u003eBMW\/Toyota B58 Performance Valve Seat Replacement by 5150 AutoSport\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe process of replacing valve seats in a BMW\/Toyota B58 engine begins with the careful machining and removal of the existing intake and exhaust valve seats. \u003cem\u003e\u003cstrong\u003eAt 5150 AutoSport, our BMW experts use precision tools to extract the worn-out or damaged valve seats\u003c\/strong\u003e\u003c\/em\u003e without compromising the integrity of the cylinder head.\u003c\/p\u003e\n\u003cp\u003eOnce the old seats are removed, \u003cem\u003e\u003cstrong\u003enew intake and exhaust valve seat bores are machined for copper alloy Valve Seats.\u003c\/strong\u003e\u003c\/em\u003e The seat bores are then measured to assure proper valve seat fitment and protrusion.\u003cstrong\u003e\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e P\u003c\/strong\u003e\u003c\/em\u003e\u003cem\u003e\u003cstrong\u003eerformance valve seats are installed using advanced methods to ensure a perfect, tight fit for optimal sealing and heat dissipation.\u003c\/strong\u003e\u003c\/em\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eReplacing valve seats is crucial for high-performance engines, especially those subjected to high boost and high RPMs. Performance valve seats offer improved heat resistance, reduced wear, and a better seal between the valves and cylinder head. This enhances airflow, boosts combustion efficiency, and increases overall engine longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eLong-term benefits include \u003c\/strong\u003e\u003cstrong\u003eimproved reliability under stress, greater power potential, and the assurance of quality work performed by 5150 AutoSport’s skilled technicians. \u003c\/strong\u003e\u003c\/em\u003eThis service is particularly valuable for B58 engines experiencing valve wear, valve leaks, or for those pushing their engines to new limits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Choose 5150 AutoSport?\u003c\/strong\u003e Our team combines expertise with cutting-edge technology to ensure that every performance valve seat installation delivers maximum performance gains and reliability. 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xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2016-2019     G30\/G31     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G32     640i GT \/ 640i GT xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2015-2019     G11\/G12     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2017-2019     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-2019     G02     X4 M40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G20\/G21     M340i \/ M340i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G22\/G23\/G26     M440i \/ M440i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZ Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G29     Z4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30\/G31 LCI     540i \/ 540i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G32 LCI     640i GT \/ GT 640i xDrive \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G11\/G12 LCI     740i \/ 740i xDrive\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G01     X3 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G02     X4 M40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G05     X5 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX6 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     G06     X6 xDrive40i\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2018-Present     G07     X7 xDrive40i\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eALPINA B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eB3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G20\/G21     B3\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2022-Present     G22     B4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eB5 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G30     B5\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eXB7 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     G07     XB7\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eToyota B58 Gen 2 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eA90 \/ A91 Supra\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2020-Present     GR Supra 3.0     \u003cbr\u003e2020-Present     GR Supra 3.0 Premium     \u003cbr\u003e2021-Present     GR Supra 3.0 A91 Edition\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50411536482611,"sku":"5150-11-B58-Seats","price":799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Close-Up-View-of-BMW-S58-Combustion-Chamber.webp?v=1732555730"},{"product_id":"s58-valve-seat-replacement","title":"BMW S58 Performance Valve Seat Replacement by 5150 AutoSport","description":"\u003ch3\u003e\u003cstrong\u003eBMW S58 Performance Valve Seat Replacement by 5150 AutoSport\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe process of replacing valve seats in a BMW S58 engine begins with the careful machining and removal of the existing intake and exhaust valve seats. \u003cem\u003e\u003cstrong\u003eAt 5150 AutoSport, our BMW experts use precision tools to extract the worn-out or damaged valve seats\u003c\/strong\u003e\u003c\/em\u003e without compromising the integrity of the cylinder head.\u003c\/p\u003e\n\u003cp\u003eOnce the old seats are removed, \u003cem\u003e\u003cstrong\u003enew intake and exhaust valve seat bores are machined for copper alloy Valve Seats.\u003c\/strong\u003e\u003c\/em\u003e The seat bores are then measured to assure proper valve seat fitment and protrusion.\u003cstrong\u003e\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e P\u003c\/strong\u003e\u003c\/em\u003e\u003cem\u003e\u003cstrong\u003eerformance valve seats are installed using advanced methods to ensure a perfect, tight fit for optimal sealing and heat dissipation.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eReplacing valve seats is crucial for high-performance engines, especially those subjected to high boost and high RPMs. Performance valve seats offer improved heat resistance, reduced wear, and a better seal between the valves and cylinder head. This enhances airflow, boosts combustion efficiency, and increases overall engine longevity.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eLong-term benefits include \u003c\/strong\u003e\u003cstrong\u003eimproved reliability under stress, greater power potential, and the assurance of quality work performed by 5150 AutoSport’s skilled technicians. \u003c\/strong\u003e\u003c\/em\u003eThis service is particularly valuable for S58 engines experiencing valve wear, valve leaks, or for those pushing their engines to new limits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Choose 5150 AutoSport?\u003c\/strong\u003e Our team combines expertise with cutting-edge technology to ensure that every performance valve seat installation delivers maximum performance gains and reliability. Trust 5150 AutoSport for your S58 engine's valve seat replacement and experience the difference in power and precision.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e","brand":"5150 AutoSport","offers":[{"title":"Default Title","offer_id":50411557486899,"sku":"5150-11-S58-Seats","price":799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/BMW-S58-Cylinder-Head-with-Performance-Valve-Seats-Installed.webp?v=1732555731"},{"product_id":"bmw-s58-cam-valve-spring-kit","title":"Kelford Camshaft \u0026 Valve Spring Kit for BMW S58","description":"\u003cp data-start=\"278\" data-end=\"641\" class=\"\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note: \u003cspan style=\"color: rgb(255, 42, 0);\"\u003eAll camshafts must be installed by a professional engine builder\u003c\/span\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"278\" data-end=\"641\" class=\"\"\u003eMaximize the performance potential of your BMW S58 engine with this complete \u003cstrong data-start=\"355\" data-end=\"396\"\u003eKelford Camshaft and Valve Spring Kit\u003c\/strong\u003e, now available from 5150 AutoSport. Designed specifically for the twin-turbo 3.0L S58 engine found in the G80 M3, G82 M4, and other modern M-series platforms, this kit delivers precision-engineered valvetrain components built for serious power.\u003c\/p\u003e\n\u003cp data-start=\"643\" data-end=\"856\" class=\"\"\u003eThis all-in-one upgrade package includes your choice of \u003cstrong data-start=\"699\" data-end=\"738\"\u003eKelford’s Stage 2 or 3 camshaft set\u003c\/strong\u003e, matched with high-performance dual valve springs and titanium retainers for superior valvetrain control at high RPM.\u003c\/p\u003e\n\u003ch2 class=\"product_title entry-title\"\u003eStage 2  | BMW S58\u003c\/h2\u003e\n\u003cp class=\"product_title entry-title\"\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003e\u003cstrong\u003e292° \/ 280° - 10.40mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW M Series Racing Camshafts professionally built BMW S58 engines making 800hp-1400hp. Turbo sizing 66-75mm. Great with aftermarket intake plenums. Maintains full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body. \u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eNote:\u003c\/span\u003e Must check intake intermediate rockers for clearance to the new racing cam lobe; OEM pressed steel rockers have sharp edges which may damage the bigger cam lobe. Trim and deburr as necessary.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003ch2 class=\"product_title entry-title\"\u003eStage 3 | BMW S58\u003c\/h2\u003e\n\u003cp class=\"product_title entry-title\"\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003e\u003cstrong\u003e298° \/ 288° - 10.40mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003eBMW M Series Stage 3 drag racing cams designed for professionally built S58 engines producing 1400hp+. Turbo sizing 76mm+ on high boost. Ethanol blend or methanol. \u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003cem\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePlease Note:\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eMust check intake intermediate rockers for clearance to the new racing cam lobe; OEM pressed steel rockers have sharp edges which may damage the bigger cam lobe. Trim and deburr as necessary.\u003cbr\u003e\u003cbr\u003eAll engine modifications should be performed by a qualified professional to ensure a proper and safe installation process and a reliable, optimally performing engine.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"1192\" data-end=\"1476\" class=\"\"\u003eEach camshaft set is crafted from Kelford’s premium billet cores and CNC-ground for consistency, performance, and durability. The included \u003cstrong data-start=\"1331\" data-end=\"1351\"\u003evalve spring set\u003c\/strong\u003e ensures stability at elevated boost levels and extended RPM ranges—critical for upgraded turbo systems and forged internals.\u003c\/p\u003e\n\u003ch3 data-start=\"1478\" data-end=\"1491\" class=\"\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1494\" data-end=\"1554\"\u003eDesigned specifically for BMW S58 (G80 M3, G82 M4, X3M, X4M)\u003c\/li\u003e\n\u003cli data-start=\"1557\" data-end=\"1626\"\u003eChoice of \u003cstrong data-start=\"1567\" data-end=\"1601\"\u003eStage 2 or 3 camshaft profiles\u003c\/strong\u003e depending on power goals\u003c\/li\u003e\n\u003cli data-start=\"1629\" data-end=\"1687\"\u003eKelford dual valve springs and titanium retainers included\u003c\/li\u003e\n\u003cli data-start=\"1690\" data-end=\"1741\"\u003eOptimized for increased lift, duration, and airflow\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1798\" data-end=\"1856\"\u003eDyno-proven results with proper tuning and supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eBMW S58 Applications:\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2023-Present     G87     M2\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G80     M3\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2021-Present     G82\/G83     M4\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX3 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F97     X3M\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eX4 Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e2019-Present     F98     X4M\u003c\/p\u003e","brand":"Kelford Cams","offers":[{"title":"Stage 2 \/ 90 lbs","offer_id":51421656580403,"sku":"358-B+KVS58-BT","price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 2 \/ 110 lbs","offer_id":51421656613171,"sku":"358-B+KVS58-BTX","price":2124.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 90 lbs","offer_id":51421656645939,"sku":"358-C+KVS58-BT","price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 110 lbs","offer_id":51421656678707,"sku":"358-C+KVS58-BTX","price":2124.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-and-Spring-Kit-for-BMW-S58-Engines.webp?v=1746119623"},{"product_id":"b58-gen-2-camshaft-valve-spring-kit","title":"Kelford Camshaft \u0026 Valve Spring Kit for BMW \/ Toyota B58 Gen 2","description":"\u003cp class=\"\" data-end=\"641\" data-start=\"278\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note: \u003cspan style=\"color: rgb(255, 42, 0);\"\u003eAll camshafts must be installed by a professional engine builder\u003c\/span\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"641\" data-start=\"278\"\u003eGet more performance from your BMW \/ Toyota B58 engine with this complete \u003cstrong data-end=\"396\" data-start=\"355\"\u003eKelford Camshaft and Valve Spring Kit\u003c\/strong\u003e, now available from 5150 AutoSport. Designed specifically for the twin-turbo 3.0L B58 engine found in the \u003cmeta charset=\"utf-8\"\u003eSupra, M340i, M240i, and more, this kit delivers precision-engineered valvetrain components built for serious power.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"856\" data-start=\"643\"\u003eThis all-in-one upgrade package includes your choice of \u003cstrong data-end=\"738\" data-start=\"699\"\u003eKelford’s Stage 2 or 3 camshaft set\u003c\/strong\u003e, matched with high-performance dual valve springs and titanium retainers for superior valvetrain control at high RPM.\u003c\/p\u003e\n\u003ch2 class=\"product_title entry-title\"\u003eStage 2 | BMW \/ Toyota B58 Gen2  \u003c\/h2\u003e\n\u003cp class=\"product_title entry-title\"\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003e\u003cstrong\u003e285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e285°\/280° stage 2 racing cams for professionally built BMW Gen 2 B58 engine making 750hp-1000hp. Turbo sizing 62-72mm. Great with aftermarket intake plenums. Still can maintain full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003ch2 class=\"product_title entry-title\"\u003eStage 3 | BMW \/ Toyota B58 Gen2 \u003c\/h2\u003e\n\u003cp class=\"product_title entry-title\"\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003e\u003cstrong\u003e288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e288° Stage 3 drag racing cams for professionally built B58 Gen 2 engines making 1200hp+. Turbo sizing 72mm+ on high boost. Fuel type ethanol blend or methanol. Must use aftermarket high flow plenum with a throttle body conversion. Recommend locking the Valvetronic system at 100% swing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"\" data-end=\"1476\" data-start=\"1192\"\u003eEach camshaft set is crafted from Kelford’s premium billet cores and CNC-ground for consistency, performance, and durability. The included \u003cstrong data-end=\"1351\" data-start=\"1331\"\u003evalve spring set\u003c\/strong\u003e ensures stability at elevated boost levels and extended RPM ranges—critical for upgraded turbo systems and forged internals.\u003c\/p\u003e\n\u003ch3 class=\"\" data-end=\"1491\" data-start=\"1478\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1554\" data-start=\"1494\"\u003eDesigned specifically for BMW \/ Toyota B58 Gen 2\u003c\/li\u003e\n\u003cli data-end=\"1626\" data-start=\"1557\"\u003eChoice of \u003cstrong data-end=\"1601\" data-start=\"1567\"\u003eStage 2 or 3 camshaft profiles\u003c\/strong\u003e depending on power goals\u003c\/li\u003e\n\u003cli data-end=\"1687\" data-start=\"1629\"\u003eKelford dual valve springs and titanium retainers included\u003c\/li\u003e\n\u003cli data-end=\"1741\" data-start=\"1690\"\u003eOptimized for increased lift, duration, and airflow\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1856\" data-start=\"1798\"\u003eDyno-proven results with proper tuning and supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kelford Cams","offers":[{"title":"Stage 2 \/ 90 lbs","offer_id":51421661888819,"sku":null,"price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 2 \/ 110 lbs","offer_id":51421661921587,"sku":null,"price":2124.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 90 lbs","offer_id":51421661954355,"sku":null,"price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 110 lbs","offer_id":51421661987123,"sku":null,"price":2124.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-and-Spring-Kit-for-BMW-Toyota-B58-Engines.webp?v=1746121356"},{"product_id":"b58-gen-1-camshaft-valve-spring-kit","title":"Kelford Camshaft \u0026 Valve Spring Kit for BMW B58 Gen 1","description":"\u003cp class=\"\" data-end=\"641\" data-start=\"278\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e\u003cstrong\u003ePlease note: \u003cspan style=\"color: rgb(255, 42, 0);\"\u003eAll camshafts must be installed by a professional engine builder\u003c\/span\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"641\" data-start=\"278\"\u003eMaximize the performance potential of your BMW B58 engine with this complete \u003cstrong data-end=\"396\" data-start=\"355\"\u003eKelford Camshaft and Valve Spring Kit\u003c\/strong\u003e, now available from 5150 AutoSport. \u003cmeta charset=\"utf-8\"\u003eDesigned specifically for the twin-turbo 3.0L B58 engine found in the \u003cmeta charset=\"utf-8\"\u003e340i, 440i, 540i, and more, this kit delivers precision-engineered valvetrain components built for serious power.\u003c\/p\u003e\n\u003cp class=\"\" data-end=\"856\" data-start=\"643\"\u003eThis all-in-one upgrade package includes your choice of \u003cstrong data-end=\"738\" data-start=\"699\"\u003eKelford’s Stage 2 or 3 camshaft set\u003c\/strong\u003e, matched with high-performance dual valve springs and titanium retainers for superior valvetrain control at high RPM.\u003c\/p\u003e\n\u003ch2 class=\"product_title entry-title\"\u003eStage 2 | BMW B58 Gen1\u003c\/h2\u003e\n\u003cp class=\"product_title entry-title\"\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003e\u003cstrong\u003e285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e285°\/280° stage 2 racing cams for professionally built BMW Gen 1 B58 engine making 750hp-1000hp. Turbo sizing 62-72mm. Great with aftermarket intake plenums. Still can maintain full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003ch2 class=\"product_title entry-title\"\u003eStage 3 | BMW B58 Gen1\u003c\/h2\u003e\n\u003cp class=\"product_title entry-title\"\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\n\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003e\u003cstrong\u003e288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e288° Stage 3 drag racing cams for professionally built B58 Gen 1 engines making 1200hp+. Turbo sizing 72mm+ on high boost. Fuel type ethanol blend or methanol. Must use aftermarket high flow plenum with a throttle body conversion. Recommend locking the Valvetronic system at 100% swing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003cdiv class=\"main-content\"\u003e\n\u003cem\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"\" data-end=\"1476\" data-start=\"1192\"\u003eEach camshaft set is crafted from Kelford’s premium billet cores and CNC-ground for consistency, performance, and durability. The included \u003cstrong data-end=\"1351\" data-start=\"1331\"\u003evalve spring set\u003c\/strong\u003e ensures stability at elevated boost levels and extended RPM ranges—critical for upgraded turbo systems and forged internals.\u003c\/p\u003e\n\u003ch3 class=\"\" data-end=\"1491\" data-start=\"1478\"\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1554\" data-start=\"1494\"\u003eDesigned specifically for BMW B58 Gen 1\u003c\/li\u003e\n\u003cli data-end=\"1626\" data-start=\"1557\"\u003eChoice of \u003cstrong data-end=\"1601\" data-start=\"1567\"\u003eStage 2 or 3 camshaft profiles\u003c\/strong\u003e depending on power goals\u003c\/li\u003e\n\u003cli data-end=\"1687\" data-start=\"1629\"\u003eKelford dual valve springs and titanium retainers included\u003c\/li\u003e\n\u003cli data-end=\"1741\" data-start=\"1690\"\u003eOptimized for increased lift, duration, and airflow\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1856\" data-start=\"1798\"\u003eDyno-proven results with proper tuning and supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kelford Cams","offers":[{"title":"Stage 2 \/ 90 lbs","offer_id":51421665460531,"sku":null,"price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 2 \/ 110 lbs","offer_id":51421665493299,"sku":null,"price":2124.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 90 lbs","offer_id":51421665526067,"sku":null,"price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 110 lbs","offer_id":51421665558835,"sku":null,"price":2124.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-and-Spring-Kit-for-BMW-B58-Engines.webp?v=1746121836"},{"product_id":"kelford-camshaft-valve-spring-kit-for-bmw-b58-gen-1-5","title":"B58 Gen 1.5 Camshaft Valve Spring Kit by Kelford Cams","description":"\u003cp\u003eB58 Gen 1.5 Camshaft Valve Spring Kit\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cem\u003ePlease note: \u003c\/em\u003e\u003c\/strong\u003e\u003cstrong style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003eAll camshafts must be installed by a professional engine builder\u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cem\u003e, using the provided camshaft specification sheet. The builder is responsible for verifying piston-to-valve clearance and setting engine timing according to the cam card specifications, not the factory settings.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMaximize the performance potential of your BMW B58 engine with this complete \u003cstrong\u003eKelford Camshaft and Valve Spring Kit\u003c\/strong\u003e, now available from 5150 AutoSport. Designed specifically for the twin-turbo 3.0L B58 engine, this kit delivers precision-engineered valvetrain components built for serious power.\u003c\/p\u003e\u003cp\u003eThis all-in-one upgrade package includes your choice of \u003cstrong\u003eKelford’s Stage 2 or 3 camshaft set\u003c\/strong\u003e, matched with high-performance dual valve springs and titanium retainers for superior valvetrain control at high RPM.\u003c\/p\u003e\u003ch2\u003eStage 2 | B58 Gen 1.5 Camshaft Valve Spring Kit\u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Circuit Race | Road Race | Roll Race | Drift | E85\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e285° \/ 280° - 10.30mm \/ 10.60mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e285°\/280° stage 2 racing cams for professionally built BMW Gen 1.5 B58 engine making 750hp-1000hp. Turbo sizing 62-72mm. Great with aftermarket intake plenums. Still can maintain full use of Valvetronic and Dual VANOS. Can run Valvetronic locked in full open position when using an aftermarket throttle body.\u003c\/p\u003e\u003ch2\u003eStage 3 | B58 Gen 1.5 Camshaft Valve Spring Kit\u003c\/h2\u003e\u003cp\u003eStrip | Drag Race | Roll Race | Drift | E85 | Methanol\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e288° \/ 288° - 10.35mm \/ 10.80mm Valve Lift\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e288° Stage 3 drag racing cams for professionally built B58 Gen 1.5 engines making 1200hp+. Turbo sizing 72mm+ on high boost. Fuel type ethanol blend or methanol. Must use aftermarket high flow plenum with a throttle body conversion. Recommend locking the Valvetronic system at 100% swing.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eEach camshaft set is crafted from Kelford’s premium billet cores and CNC-ground for consistency, performance, and durability. The included \u003cstrong\u003evalve spring set\u003c\/strong\u003e ensures stability at elevated boost levels and extended RPM ranges—critical for upgraded turbo systems and forged internals.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for BMW B58 Gen 1.5\u003c\/li\u003e\n\u003cli\u003eChoice of \u003cstrong\u003eStage 2 or 3 camshaft profiles\u003c\/strong\u003e depending on power goals\u003c\/li\u003e\n\u003cli\u003eKelford dual valve springs and titanium retainers included\u003c\/li\u003e\n\u003cli\u003eOptimized for increased lift, duration, and airflow\u003c\/li\u003e\n\u003cli\u003eDyno-proven results with proper tuning and supporting mods\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kelford Cams","offers":[{"title":"Stage 2 \/ 90 lbs","offer_id":51421701439795,"sku":"KEL-CSS+VSK-B58-1.5-ST2-90","price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 2 \/ 110 lbs","offer_id":51421701472563,"sku":"KEL-CSS+VSK-B58-1.5-ST2-110","price":2124.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 90 lbs","offer_id":51421701505331,"sku":"KEL-CSS+VSK-B58-1.5-ST3-90","price":1999.98,"currency_code":"USD","in_stock":true},{"title":"Stage 3 \/ 110 lbs","offer_id":51421701538099,"sku":"KEL-CSS+VSK-B58-1.5-ST3-110","price":2124.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/3827\/3587\/files\/Kelford-Cam-and-Spring-Kit-for-BMW-B58-Engines.webp?v=1746121836"}],"url":"https:\/\/5150autosport.com\/de\/collections\/b58-s58-cylinder-head-upgrades.oembed","provider":"5150 AutoSport","version":"1.0","type":"link"}