Crafted by ARP

We have tested fuel pumps with and without check valves

Customizable screen layouts & built-in help

often caused by inadequate spring rates

CP-Carrillo pistons are the best choice for any S65 engine and application

BMW S63 Lifter Shim Set by Ferrea 14811 Crafted by ARPFerrea Lifter Shim Set for BMW S63 Engines The Ferrea Racing Lifter Shim Set is engineered to enhance the valvetrain stability of BMW S63 engines, ensuring reliable performance under high RPMs and demanding conditions. These precision shims, installed beneath the stock hydraulic lifters, limit lifter travel to prevent valve float, maintaining optimal engine performance during high boost setups, track days, or racing events. Prevent Valve Float and