The 5150 Spring Speed Fest

Spring is here—and so is build season! Whether you’re refreshing an engine or finally starting that big turbo setup, now’s your chance to save on the parts that make it happen. The 5150 Spring Speed Fest brings discounts across the store through the end of the month.

Here’s what’s on deck:

  • 10% OFF Forged Rod & Piston Kits
  • Buy a Valve Spring Kit, get 10% OFF Kelford Cams
  • Buy Driven Racing Oil, get 10% OFF a 5150 Oil Pan Baffle
  • 10% OFF Upgraded S54 VANOS Hubs
  • 5% OFF 5150 Stroker Kits
  • 10% OFF Turbo Build Kits
  • 10% OFF Wheel Stud Conversion Kits
  • 10% OFF 11,000 RPM Valve Spring Kits

Whether you're planning a full engine build or just knocking out a few upgrades, this sale can save you up to $1,075.

Don’t wait—sale ends Wednesday, April 30th at 11:59PM ET.

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New! to our catalog: Arias Pistons for BMW

Today, Power Meets Affordability.

Established in 1969, Arias has a 55+ year legacy of engineering top-tier, high-quality pistons at competitive prices. Manufactured in the renowned CP-Carrillo facility in Irvine, CA, these forged piston sets represent the pinnacle of precision engineering and cutting-edge manufacturing technology.

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5150 Machine Shop Services

No machine shop? No problem. The 5150 Team is READY for all of your BMW performance service needs, from expert sleeving and O-Ring installation, to complete performance cylinder heads and 5-Axis porting. Don't wait months for the other guys; we're ready to get it done NOW! Contact sales for more information or browse our complete catalog of performance services below.

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5150 AutoSport

BMW S68 4.8L Stroker Kit by 5150 AutoSport

$10,734.99 USD
$11,299.99 USD $10,734.99 USD
Sale Sold out
Shipping calculated at checkout.
Connecting Rods - Bore
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A Closer Look: 5150 Pro-Xtreme Cylinder Heads

5150 Stroker Kits

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The 5150 Garage

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  • The R44 Performance G87 M2

    The R44 Performance G87 M2

      @R44Performance's X-Drive G87 M2 is the UK's up and coming drag monster. With a slew of international appearances lined up, you may even find yourself lining up against this formidable foe. With 1500WHP...

    The R44 Performance G87 M2

      @R44Performance's X-Drive G87 M2 is the UK's up and coming drag monster. With a slew of international appearances lined up, you may even find yourself lining up against this formidable foe. With 1500WHP...

  • Maurice's 3.5L NA E46 M3

    Maurice's 3.5L NA E46 M3

        Trust us, @mcoreinnovations' 3.5L E46 M3 is what Naturally Aspirated enthusiasts dream of. Boasting a far-from-stock 3.5L displacement and Bavarian good looks, Maurice's M3 is an ongoing labor...

    Maurice's 3.5L NA E46 M3

        Trust us, @mcoreinnovations' 3.5L E46 M3 is what Naturally Aspirated enthusiasts dream of. Boasting a far-from-stock 3.5L displacement and Bavarian good looks, Maurice's M3 is an ongoing labor...

  • 5150 Daily Turbo E46 M3

    5150 Daily Turbo E46 M3

    The most fun you could have in a Daily (with your clothes on, at least), our shop Turbo E46 M3 was built with reliability under boost in mind. The ultimate...

    5150 Daily Turbo E46 M3

    The most fun you could have in a Daily (with your clothes on, at least), our shop Turbo E46 M3 was built with reliability under boost in mind. The ultimate...

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New Releases

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  • E52 Z8

    E52 Z8

    E52 Z8

  • E36/E37/E38 Z3

    E36/E37/E38 Z3

    To determine which engine your Z3 model has, please refer to the...

    E36/E37/E38 Z3

  • E39

    E39

    The BMW E39, produced from 1995 to 2003, is regarded as one...

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  • E38

    E38

    To determine which engine your E38 7-Series model has, please refer to...

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  • E36

    E36

    The BMW E36, manufactured between 1990 and 1999, is recognized for its...

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  • E31

    E31

    To determine which engine your E31 8-Series model has, please refer to...

    E31

  • E34

    E34

    The BMW E34, produced from 1988 to 1996, is known for its refined design,...

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  • E32

    E32

    To determine which engine your E32 7-Series model has, please refer to...

    E32

  • E30

    E30

    The E30's rear-wheel-drive chassis offered an engaging driving experience, attracting motorsport aficionados...

    E30

  • E28

    E28

    The BMW E28, produced from 1981 to 1988, is celebrated for its elegant...

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  • E23

    E23

    To determine which engine your E23 7-Series model has, please refer to...

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    E24

    To determine which engine your E24 6-Series model has, please refer to...

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  • E21

    E21

    To determine which engine your E21 3-Series model has, please refer to...

    E21

  • E12

    E12

    To determine which engine your E12 5-Series model has, please refer to...

    E12

  • E20

    E20

    E20

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CP-Carrillo x 5150 AutoSport Pro-Xtreme Collection

Designed with ultra-high performance in mind, these 5150 exclusive products are made to handle extreme horsepower and high RPM applications.

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