Clutch Masters FX725 Twin-Disc Clutch Kit w/ Steel Flywheel | 1990 - 1995 Toyota MR2 (16061-TD7S-S)Twin Disc Clutch Kit w Steel Flywheel by Clutch Masters The FX725 Twin Disc is the ultimate in multi disc performance clutch kits for engines transmissions with smaller bell housings that are focused on drag racing. The Clutch Masters FX725 Twin Disc system has been developed from decades of experience in drag racing and circuit events. Because of the minimal rotational mass the FX725 isn't ideal for the street but with improvements in friction