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5150 AutoSport

Complete S14 B25 Drivetrain Turnkey Swap – Ready for Installation

Complete S14 B25 Drivetrain Turnkey Swap – Ready for Installation

Regular price $29,999.99 USD
Regular price Sale price $29,999.99 USD
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This is a rare opportunity to purchase a complete, fully built BMW S14B25 EVO 2.5L drivetrain, ready for immediate installation into your roller. This is a full turnkey setup — engine, transmission, electronics, and supporting components — with less than 3,000 miles since build completion.

Engine Highlights:

  • S14B25 2.5L EVO with new Sport Evo block
  • Fully ported cylinder head for optimized airflow
  • Supertech performance valves, valve spring kit, and shim-under-bucket setup
  • Schrick 292/284 camshafts with adjustable cam gears
  • Modified camshaft box for high-rpm durability
  • JE Pistons – 11.5:1 compression
  • Arrow precision connecting rods
  • New Sport Evo-spec oil squirters and oil pump
  • New timing chains, chain guides, and water pump
  • New GRP Motorsport Oil Pan
  • Carbon fiber airbox with 48mm individual throttle bodies (ITBs)
  • 50/50 race headers for maximum flow

Drivetrain and Electronics:

  • 5-Speed Dogleg Gearbox with Sport Evo Flywheel
  • Shifter assembly and linkages included
  • Driveshaft included
  • MilSpec Engine Harness paired with a Life Racing ECU — professionally built and mapped
  • Complete sensor package for plug-and-play operation

Cooling and Accessories:

  • High-efficiency radiator with electric fan
  • Coolant expansion tank
  • Remote oil filter setup
  • Alternator and starter included
  • Injectors and fuel rail ready for integration


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