ACT Max Extreme Race Sprung 4 Pad Clutch Kit | Honda Civic (89-91) (HW4-XXG4)ACT MaXX Race Sprung 4 Pad Kit HW4 XXG4 kit features a MaXX pressure plate for the serious enthusiast. ACT MaXX pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four stage, heat treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4 pad spring centered race disc features a