ACT ZM2-HDSS HD Pressure Plate with Performance Street Sprung Clutch Disc A low to moderate pedal feel; smooth engagement with stock to low gear rattle Longer clutch life achieved through ACT's exclusive diaphragm design Premium organic friction materials for heat tolerance,faster recovery from overheating and prevents warping of mating surfaces Recommended for street and race use All ACT pressure plates are dynamically computer balanced for smooth operation at high RPM