ACT Clutch Kit: Mazda RX7 Non Turbo 83-91, ACT-ZX2-HDR6-KITKit comes with Heavy Duty pressure plate, 6 pad rigid race disc, release bearing, pilot bearing, alignment tool, & can hold up to 345ft lbs of torque. ZX2 HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty 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