Spec Clutch SD163H-2 Stage 2 Plus Performance Clutch Kit

The SPEC SD163H-2 Stage 2 Plus Clutch Kit is engineered for modified engines that demand more torque capacity than a standard Stage 2 clutch can deliver. Bridging the gap between the Stage 2 and Stage 3, this kit delivers the smooth, familiar engagement feel of the Stage 2 while providing a 15–20% higher torque capacity — making it ideal for street-driven performance builds that see occasional or regular track use.

Key Features:

• Multi-friction composite disc in a full-face configuration — carbon semi-metallic on one side, Kevlar® on the other — for superior grip and wear resistance
• High-clamp pressure plate for increased clamping force on high-torque applications
• Double-sprung hub with spring cover reliefs for engagement flexibility and vibration damping
• Heat-treated hub components for long-term strength and durability
• High-torque sprung hub and disc assembly optimized for demanding drivetrain loads
• Bearing and installation tool kit included for a complete, ready-to-install package

Intended Use: Street, Drag Racing, Road Racing, Rally, Autocross, Pulling

Designed, hand-built, and tested in the U.S.A., the SPEC Stage 2 Plus delivers the daily drivability of a street clutch with the holding power needed for serious performance driving. Stages 1 through 3+ are recommended for street/strip applications.