this kit features Viton valve stem seals

This Athena Cut Ring Head Gasket is specifically engineered to replace BMW part 11127835918 for the BMW S54 engine

Ferrea valve springs are specifically crafted for high-lift and high-RPM applications

each component reflects the brand’s commitment to engineering excellence

CP Forged Piston Set, BMW S38 B38 Compression Ratio:10:1 this kit features Viton valveCP Carrillo represents the highest quality pistons on the market, engineered for maximum power and durability. Utilizing high strength, lightweight materials and advanced engineering, this BMW S38B38 piston set features: Lightweight Design: CP Carrillo pistons are made from high strength, lightweight materials, such as forged aluminum alloy. Reduced piston weight contributes to improved engine responsiveness and acceleration. Advanced Engineering: CP