Stroker Kits

5150 AutoSport Stroker Kits provide everything you need to increase displacement and torque in your BMW engine, using only premium, race-proven components. Each kit includes forged pistons, forged connecting rods, and a precision-machined 5150 billet steel stroker crankshaft for maximum strength and reliability. Designed for high-performance street and track builds, these kits deliver increased power, improved throttle response, and the durability required for forced induction or high-RPM applications.