Pay in 4 interest-free payments of $300.00 Learn more
Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
To exceed 850HP
Each kit includes high-quality valve springs and all necessary components for seamless installation
Ferrea's two-step slow forging process ensures optimal grain flow and minimizes internal stress
Ferrea valve springs are meticulously heat-treated and stress-relieved to ensure stability in high-lift and high-RPM applications
9600 RPM S54 Valvetrain Kit N20 Head Gasket To exceed 850HPTired of dealing with shim related issues in your BMW S54 engine? Supertech has the perfect solution with this high performance valvetrain kit, designed to eliminate the common risks of OEM valve shim failure, valve float, and coil bind. This upgrade allows you to confidently push your BMW S54 to an incredible 9600 RPM, transforming the performance of your E46 M3 or Z4M. The Supertech valvetrain kit includes high quality engine valves and valve
