Spec Clutch SB363H Stage 2 Plus Clutch Kit - Carbon-Kevlar Multi-Friction

The SPEC SB363H Stage 2 Plus Clutch Kit is engineered for modified engines that demand more torque capacity than a standard Stage 2 clutch can handle, while still preserving the smooth, street-friendly engagement that Stage 2 is known for. This kit bridges the gap between the SPEC Stage 2 and Stage 3 clutch kits, delivering 15–20% higher torque capacity without sacrificing daily drivability.

At the core of this kit is a composite multi-friction disc in a full-face configuration, featuring carbon semi-metallic material on one side and Kevlar® on the other. This hybrid friction design maximizes wear life, heat resistance, and torque holding power across a wide range of driving conditions. A high-clamp pressure plate provides the increased clamping force needed for higher-output applications.

The hub assembly is double-sprung with spring cover reliefs for added flexibility and vibration absorption, while heat-treated internal components ensure long-term strength and durability under demanding conditions. The result is a clutch that performs reliably on the street and at the track.

Key Features:

• Composite multi-friction disc — carbon semi-metallic on one side, Kevlar® on the other
• High-clamp pressure plate for elevated torque holding capacity
• 15–20% higher torque capacity versus the standard SPEC Stage 2 kit
• Double-sprung hub with spring cover reliefs for flexibility
• Heat-treated hub components for strength and durability
• Bearing and installation tool kit included
• Designed and hand-built in the U.S.A.

Ideal Driving Applications: Street, Drag Racing, Road Racing, Rally, Autocross, Pulling