Spec Clutch SB633H Stage 2 Plus Performance Clutch Kit

The SPEC SB633H Stage 2 Plus Clutch Kit bridges the gap between the SPEC Stage 2 and Stage 3 clutch systems, delivering the smooth daily drivability and precise engagement feel of the Stage 2 while adding a 15–20% higher torque capacity. It is engineered specifically for modified engines that have outgrown the holding power of a standard Stage 2 kit.

The kit features a composite multi-friction disc in a full-faced configuration, combining carbon semi-metallic material on one side with Kevlar® on the other for excellent torque transfer and wear resistance. The double-sprung hub includes spring cover reliefs for added flexibility, while heat-treated internal components ensure long-term strength and durability under demanding conditions.

Key Features:

• High-clamp pressure plate for superior clamping force
• Hybrid carbon semi-metallic and Kevlar® multi-friction disc in full-faced configuration
• Double-sprung hub with spring cover reliefs for flexibility and smooth engagement
• Heat-treated components for enhanced strength and durability
• High-torque sprung hub and disc assembly
• Includes release bearing and installation tool kit
• SFI approved

Ideal Driving Applications: Street, drag racing, road racing, rally, autocross, pulling, and drifting.