These kits are manufactured by Automotive Racing Products (ARP)

5″ and (1) 3″ Hose clamps

even under the extreme demands of high-performance driving

10x 11mm Nuts

9600 RPM S54 Valvetrain Kit S54 Head Gasket These kits are manufactured byTired 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