Spec Clutch SB354 Stage 4 Performance Clutch Kit

The SPEC SB354 Stage 4 Clutch Kit is engineered for heavily modified performance vehicles demanding maximum torque capacity and instantaneous engagement. As a solid hub version of the Stage 3, this kit steps up clamping force and disc rigidity to handle the punishment of high-horsepower builds where a standard or street-oriented clutch simply won't hold.

Key Features:

• High-clamp pressure plate for significantly increased clamping force over stock and lower-stage clutches
• Carbon semi-metallic friction disc available in 3, 4, or 6-puck configurations — choose 3-puck for the lightest rotating mass, 6-puck for the smoothest engagement, or 4-puck as a balanced compromise
• High-torque solid 8-rivet hub with heat-treated disc assembly for exceptional strength and durability under extreme load
• Includes pressure plate, friction disc, release bearing, and alignment tool

Intended Use — Types of Driving:

• Drag Racing
• Drift
• Road Racing
• Rallye
• Pulling
• Circle Track

Note: The Stage 4 rigid hub design delivers aggressive, near-instantaneous clutch engagement. This kit is not recommended for street use due to its harsh engagement characteristics. It is best suited for dedicated race and competition applications.