
The Clutch Masters FX350 sprung fiber-friction clutch kit for 2014–2018 BMW F80 M3 and F82 M4 (S55) 6-speed applications raises holding capacity for heavily tuned street and occasional track use. It uses Fiber-Tough friction with a heavy-duty pressure plate for increased clamp and a slightly more aggressive engagement. Built for single-mass flywheels; it will not work with dual-mass flywheels.
Clutch Masters 14-18 BMW F80 M3/F82 M4 S55 6-Speed FX350 Fiber Friction Dampened Disc Clutch Kit