The ARP 201-4303 head stud kit is custom-designed for the BMW S54 inline 6-cylinder engine and serves as a replacement for the BMW head bolts 11127831862 commonly found in E46 M3 and E36/7 Z3 M Roadster

Tested for reliability in racing and street environments

1 mm Intake / 28

CP-Carrillo pistons are the best choice for any M42 engine and application

CP-Carrillo’s advanced manufacturing processes—using computer-aided design (CAD) and finite element analysis (FEA)—ensure each connecting rod meets the exacting requirements of high-performance engines

CP Forged Piston Set, BMW M30 B34 Bore Size:90 mm The ARP 201-4303 head studCP 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 M30B34 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