ACT Clutch Kit: Mazda RX7 Turbo 87-91, ACT-Z65-HDR6-KITKit comes with Heavy Duty pressure plate, 6 pad rigid race disc, release bearing, pilot bearing, alignment tool, & can hold up to 420ft lbs of torque. Note: Flywheel requires Counterweight (Not included). Z65 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