CP Piston BMW N20B20/N55B30/S55B30 (4 + 6 Cyl) 84mm Bore -9.7cc STD Piston - SINGLE

This CP Pistons forged piston features an 84mm bore and a -9.7cc dish volume, designed for BMW N20, N55, and S55 engines. These pistons are built for performance applications where increased power and reliability are key. The forged construction offers a strong foundation for high-stress engine builds.

CP Pistons are well-known for their robust construction, and this piston is no exception. The -9.7cc dish volume is a specific design choice that impacts compression ratio when paired with different cylinder heads and head gasket thicknesses. This detail is important for tuners aiming for precise engine calibration. Each piston is sold individually, allowing you to build or replace exactly what you need for your specific engine configuration, whether it's a 4-cylinder N20 or a 6-cylinder N55 or S55.

When rebuilding or modifying your BMW's engine, choosing the right internal components is crucial. These pistons are a solid option for those looking to enhance their engine's performance and durability. Remember that this part is not CARB approved and cannot be shipped to California.