Spec Clutch SC172 Stage 2 Kevlar Clutch Kit

The SPEC SC172 Stage 2 Clutch Kit delivers an ideal balance of street drivability and enhanced performance capability. Featuring a segmented or full-faced pure Kevlar disc with steel backing, the Stage 2 offers noticeably longer service life and higher torque capacity compared to the Stage 1, while maintaining smooth, predictable engagement for daily-driven and performance-oriented vehicles.

The double-sprung hub design incorporates spring cover reliefs for added flexibility, while heat-treated internal components provide the strength and durability needed to withstand the rigors of spirited street use and competitive driving disciplines. The high-clamp pressure plate ensures a positive, confident hold under increased power loads.

Key Features:

• Pure Kevlar friction material — segmented or full-faced disc with steel backing for exceptional wear life and torque capacity
• High-clamp pressure plate for improved clamping force over stock
• Double-sprung hub with spring cover reliefs for flexibility and smooth power transfer
• Heat-treated hub components for long-term strength and durability
• 8.500 in. (216mm) disc diameter with 20-spline input shaft interface (0.875 in. shaft diameter)
• Bearing and alignment tool kit included on select applications
• Sold as a complete kit; flywheel not included

Intended Use: Street, Drag Racing, Pulling, Autocross

The SPEC Stage 2 is an excellent choice for mildly to moderately modified engines on naturally aspirated or power-adder setups, as well as stock applications where long clutch life and improved durability are the priority. SPEC clutches are designed, hand-built, and tested in the U.S.A., and every kit and flywheel carries SFI approval.