Spec Clutch SF473H Stage 2 Plus Performance Clutch Kit

The Spec Clutch SF473H Stage 2 Plus Clutch Kit is a high-performance clutch upgrade engineered to bridge the gap between the Stage 2 and Stage 3 offerings. It delivers the smooth drivability and engagement quality of a Stage 2 while adding 15–20% more torque capacity, making it an ideal choice for enthusiasts who demand more from their drivetrain without sacrificing everyday usability.

At the heart of the SF473H is a multi-friction disc in a full-faced configuration, combining carbon semi-metallic material on one side and Kevlar® on the other. This hybrid friction pairing provides excellent heat resistance, consistent engagement feel, and extended disc life under demanding conditions. The hub is double sprung with spring cover relieves for added flexibility and reduced drivetrain shock, while heat-treated components ensure long-term strength and durability.

Key Features:

• High-clamp pressure plate for increased clamping force and improved power transfer
• Hybrid Kevlar® and carbon-graphite friction material for a balance of durability and performance
• Double-sprung hub with spring cover relieves for flexibility and shock absorption
• Heat-treated components for superior strength and longevity
• Includes bearing and installation tool kit for complete installation readiness

Recommended Driving Applications:

• Street
• Drag Racing
• Autocross
• Pulling
• Road Racing
• Rallye
• Drift

Designed, hand-built, and tested in the USA, the SPEC SF473H Stage 2 Plus Clutch Kit is a proven performance upgrade for drivers seeking a meaningful step up in torque capacity without the harsh engagement characteristics of a full race-spec clutch.