you can expect reduced oil leakage into the combustion chamber

Includes ARP rod bolts for superior clamping force

Whether you're chasing horsepower records or building a reliable

BMW S38B38 Applications:

Upgrade your B58 engine with the Ferrea Valve Kit to experience enhanced tensile strength

SuperSprint Tubular Stepped Header, BMW S54 S52 you can expect reduced oil+ 15 19hp gain over 'Euro style' headers,+ full stepped tubular and equal length headers,+ bolts to the engine with factory hardware and gaskets,+ used with Supersprint stepped section 1 (with or without cats)While stepped header technology has been prevalent in Formula 1 for some time, these SuperSprint Headers were the first application of a stepped design on the E46 M3. In an engine as finely tuned as the S54, airflow management is crucial for