1985-1993     E30     325i / 325is / 325ix

the head stud kit for a BMW S54 engine would be different from the one for a BMW M50 engine

Handles extreme combustion pressures for turbo and high-boost applications

1998-2000     E46     323i / 323Ci

CP Forged Piston Set, BMW B58 11341722909 1985-1993 E30 325i / 325isCP 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 B58 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