Stage 1 features a molded, high-performance, organic lining that offers smooth engagement and excellent life. 323 ft lb capacity.
Stage 2 features a kevlar disc with steel backing, yielding excellent drivability, longer life and higher torque capacity of 367 ft lbs.
Stage 2+ features a multi-friction disc that maintains the excellent drivability of Stage 2, but with a higher torque capacity of 411 ft lbs.
Stage 3 features a carbon semi-metallic 6-puck designed for street and race cars that require an aggressive but streetable engagement. 437 ft lbs capacity.
Stage 3+ features a carbon semi-metallic full faced material that offers unparalleled life, friction co-efficient and drivability. 506 ft lbs capacity.
Stage 4 features a solid kevlar disc with steel backing, yielding excellent holding power, longer life, and torque capacity of 437 ft lbs.
Stage 5 features a solid full-metallic disc with the highest possible friction co-efficient. Street drivable, but not street-friendly. 612 ft lb capacity.
These kits use non-ratcheting style pressure plates. These will only work with the SPEC flywheel they are sold with.