Description
BMW S58 Performance Valve Seat Replacement by 5150 AutoSport KMSF10AL CPIPE N55 Variable Valve Timing: Up to BMIVN 1037 Exhaust Valve Diameter Length Material:33 mm 126.1 mm Black Nitride PFR5 4612 1994 1996 E34 518i Variable Valve Timing: Up to 4 cams with independent closed loop control and multiple target tables Designed specifically for BMW S54 engines