Spec Clutch SJ403H Stage 2 Plus Performance Clutch Kit

The Spec Clutch SJ403H Stage 2 Plus Clutch Kit bridges the gap between the Stage 2 and Stage 3, delivering the smooth drivability and predictable engagement of the Stage 2 with a 15–20% higher torque capacity. This makes it an ideal upgrade for enthusiasts who need more holding power without sacrificing street manners.

The kit features a multi-friction disc in a full-faced configuration, combining carbon semi-metallic material on one side and Kevlar® on the other for a hybrid friction profile that excels under both everyday driving and high-demand performance conditions. The hub is double-sprung with spring cover reliefs for added flexibility, while heat-treated components deliver long-term strength and durability.

Key Features:

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

Intended Use:

• Street
• Drag Racing
• Autocross
• Pulling
• Road Racing
• Rallye
• Drift

The SPEC Stage 2 Plus is engineered for drivers who have outgrown a stock or Stage 1 clutch and need a performance solution that still delivers daily-driver comfort. All SPEC clutch kits are designed, hand-built, and tested in the U.S.A.