For the NA BMW S54 enthusiast interested in rebuilding their engine with bulletproof internals

Billet aluminum body with advanced low-friction coatings for smoother operation and reduced internal wear

Customizable screen layouts & built-in help

Crafted by ARP

often caused by inadequate spring rates

BMW S63 Lifter Shim Set by Ferrea 14811 For the NA BMW S54Ferrea 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