From increased strength to improved reliability

The Ferrea Valve Spring Kit for BMW N63 engines is engineered for superior durability and performance under extreme conditions

Rated for up to 2000 horsepower and 9500 RPM

Phosphate-coated to reduce micro-welding and pin galling**

CP Forged Piston Set, BMW B46 Compression Ratio:9.5:1 From increased strength to improvedUpgrade your BMW's B46 engine with CP Carrillo forged pistons for high performance, race proven durability. CP Carrillos motorsport heritage ensures that each piston is crafted with the precision needed to meet the demands of both street and track applications. Known for their high strength forged aluminum alloy construction, CP pistons deliver a unique combination of lightweight design, advanced engineering, and robust performance to help unleash the