Spec Clutch SU334 Stage 4 Performance Clutch Kit - 3/4/6 Puck Carbon-Graphite

The Spec Clutch SU334 Stage 4 Clutch Kit is a high-performance, solid hub clutch system engineered for serious motorsport applications. Built as a solid hub evolution of the Stage 3, this kit features a rigid 8-rivet hub with a heat-treated assembly for maximum strength and durability under demanding race conditions.

Available in 3, 4, or 6 puck configurations to match your specific driving needs. The 3-puck disc is the lightest option for maximum performance, the 6-puck delivers the smoothest engagement of the three, and the 4-puck strikes an ideal balance between the two. While technically street-drivable in the 6-puck configuration, the rigid hub design makes this kit best suited for dedicated performance and race use.

Key Features:

• Solid 8-rivet rigid hub — heat-treated for strength and durability
• High-clamp pressure plate — maximizes clamping force for high-torque applications
• Carbon-graphite friction material — on 3, 4, or 6 puck carbon semi-metallic disc
• High-torque solid hub and disc assembly — instantaneous, uncompromising engagement
• Bearing and installation tool kit included — everything needed for installation
• Available in 3, 4, or 6 puck configurations — select based on your performance goals

Ideal Applications:

• Drag Racing
• Road Racing
• Rally / Rallye
• Drift
• Pulling

The Stage 4 is recommended for serious drag and road racing purposes where instantaneous clutch engagement is critical. Due to the rigid hub design, this kit is not recommended as a daily street clutch. Spec clutch kits are only available in a torque-guaranteed configuration — Spec is the only clutch manufacturer that guarantees its listed torque capacity numbers.