ACT AI4-XXG6 MaXX Pressure Plate with Race Sprung 6-Pad Clutch Disc A stiff to very stiff pedal feel; aggressive engagement with stock to low to moderate gear rattle Longer clutch life achieved through ACT's exclusive diaphragm design Premium ceramic friction materials provide low wear rates and high heat tolerance Recommended for high horsepower street or race use All ACT pressure plates are dynamically computer balanced for smooth operation at high RPM