Spec Clutch SP313H Stage 2 Plus Performance Clutch Kit

The Spec Clutch SP313H Stage 2 Plus Clutch Kit is engineered for modified engines that demand more torque capacity than a standard Stage 2 clutch can handle. Bridging the gap between the Stage 2 and Stage 3, this kit delivers the familiar daily-drivability and smooth engagement feel of the Stage 2 while providing a 15–20% higher torque capacity — making it ideal for street-driven performance builds that also see track or competition use.

The friction disc uses a full-face, multi-friction composite design with carbon semi-metallic material on one side and Kevlar on the other, providing excellent grip, durability, and heat resistance across a wide range of driving conditions. The double-sprung hub features spring cover reliefs for flexibility, while heat-treated internal components deliver long-term strength and durability under high-stress loads.

Key Features:

• High-clamp performance pressure plate for increased clamping force
• Full-face multi-friction disc — hybrid carbon-graphite and Kevlar® friction material
• 15–20% higher torque capacity versus the Stage 2 clutch kit
• Double-sprung hub with spring cover reliefs for engagement smoothness and flexibility
• Heat-treated hub components for enhanced strength and durability
• Maintains Stage 2 drivability and engagement quality for daily use
• Includes bearing and tool kit

Intended Use: Street, Drag, Road Race, Rally, Autocross, Pulling, Drift

All Spec Clutch products are designed, tested, and manufactured in-house in the USA, built to strict tolerances to ensure consistent performance in both street and competition environments.