Proper surface preparation is essential

it lessens the risk of the hub spinning because of a loose crank bolt

efficient design

ensuring better performance and longevity

As the OEM hub ages and wears

BMW S54 3.0L De-Stroker Kit by 5150 AutoSport SC7705 Proper surface preparation is essentialThe 5150 AutoSport BMW S54 3. 0L Destroker Kit is engineered for racers who need high RPM capability and precise engine response. By reducing the S54s displacement from 3. 2L to 3. 0L, this kit optimizes the rod to stroke ratio for sustained high RPM applications, allowing the engine to safely rev to 10,000 RPM while maintaining exceptional balance and reliability. Each kit includes our 4340 billet steel crankshaft, forged CP pistons, and SP