Spec Clutch ST884 Stage 4 High-Performance Clutch Kit

The Spec Clutch ST884 Stage 4 Clutch Kit is a race-grade, solid hub clutch system engineered for drivers who demand maximum torque capacity and durability. Built as a solid hub evolution of the Stage 3, this kit features a high-clamp pressure plate and carbon-graphite friction material designed to handle the punishment of drag racing, road racing, rally, pulling, and drift applications.

The solid 8-rivet hub is heat treated for exceptional strength, and the entire assembly is available in 3-puck, 4-puck, or 6-puck configurations to suit different performance priorities. The 3-puck disc delivers the lightest rotating mass for maximum response, the 6-puck configuration offers the smoothest engagement and is the most street-tolerant option, while the 4-puck strikes a balance between the two. Note that while the 6-puck version is technically street drivable, the rigid solid hub makes this kit best suited for competition use.

Key Features:

• Carbon-graphite friction material for high torque capacity and durability
• High-clamp pressure plate for superior clamping force
• Solid 8-rivet hub, heat treated for strength and long service life
• Available in 3, 4, or 6-puck disc configurations
• Includes bearing and installation tool kit
• Designed, hand-built, and tested in the U.S.A.

Recommended Driving Applications: Drag Racing, Road Racing, Rally, Pulling, Drift, Autocross