SPEC Stage 2+: SPEC's Stage 2+ features a multi-friction disc in a full faced configuration with carbon semi-metallic on one side and Kevlar on the other. The 2+ offers the drivability and engagement quality of Stage 2, but with a 15-20% higher torque capacity. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Stage 2+ is suggested for highly modified but daily driven Mustangs that will see some track time.

SPEC Stage 3: The SPEC Stage 3 clutch kit features a carbon semi-metallic 6-puck sprung hub disc that has been the leading pucked clutch in drivability, life & torque capacity. Stage 3 is designed for street & race cars that require an aggressive but streetable engagement & high torque capacity. The hub is double sprung with spring cover relieves for flexibility & heat treated for strength and durability. Suggested for highly modified, street, autocross & track driven Mustang GT.

SPEC Stage 3+: Stage 3+ is the flagship stage for a high powered street or race car that requires a manageable and friendly engagement. The SPEC Stage 3+ features a carbon semi-metallic full faced material that offers unparalleled life, friction coefficient and drivability characteristics in one single package. The hub is double sprung with spring cover relieves for flexibility and heat treated components for strength and durability. Suggested for very highly modified, streetable autocross & track driven Mustang.