Clutch Masters 21-22 BMW G80 M3/G82 M4 S58 6-Speed FX1000 Race Twin Disc Clutch KitThe Clutch Masters FX1000 is a 10. 00 (254mm) Twin Disc clutch unit designed for high horsepower applications that performs well on the track and can even withstand heavy street use. The strap driven plate design allows for smooth engagement and minimal clutch chatter while still being able to withstand hard launching, clutch kicking, and high RPM shifting. Designed for the enthusiast who pushes the limits of performance on their high powered vehicle