Clutch Masters 21-23 BMW M3/M4 3.0L S58 Factory Fit FX350 Twin Disc Clutch w/Alum. FlywheelThe Clutch Masters Factory Fit FX350 Series Twin Discs kit for the 2021+ BMW G80 M3 and G82 M4 with the amazing S58 engine and a 6 Speed manual transmission was developed to bridge the gap between replacing the comfortable driving twin disc that came in these cars from the factory and one of our more race orientated 725, 850 or 1000 Series twin disc kits. As OE auto manufactures continue to push for more and more power, they are typically equipping