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Precision Fit and Performance
ARP Head Stud Kit (201-4305)
11-12-7-567-765
these supercharger-specific cams ensure smooth
Backed by CAT Cams’ expertise and high-quality manufacturing processes
Race-Spec P54 Headers for E46 M3 by 5150 AutoSport S85B50 Precision Fit and PerformanceThe 5150 AutoSport Race Spec P54 Header for E46 M3 is engineered for serious motorsport performance, drawing direct inspiration from BMWs legendary P54 race engine. Designed to maximize exhaust flow and reduce backpressure, this header is built to support high revving S54 engines under extreme racing conditions. Crafted from high grade stainless steel, it delivers exceptional durability and thermal stability while maintaining precise fitment for the
