making them ideal for high-RPM applications

we can ensure each port is exact and even across the cylinder head

or sequential fire modes

PFF5-1301 Front Arm Front Bushings

5150 bearings have demonstrated exceptional longevity and reliability

BMW S58 Performance Valve Seat Replacement by 5150 AutoSport Pro Extreme making them ideal for high-RPMBMW S58 Performance Valve Seat Replacement by 5150 AutoSport The process of replacing valve seats in a BMW S58 engine begins with the careful machining and removal of the existing intake and exhaust valve seats. At 5150 AutoSport, our BMW experts use precision tools to extract the worn out or damaged valve seats without compromising the integrity of the cylinder head. Once the old seats are removed, new intake and exhaust valve seat bores are machined