Spec Clutch SN423 Stage 3 Performance Clutch Kit

The Spec Clutch SN423 Stage 3 Clutch Kit is engineered for heavily modified street and race vehicles that demand aggressive torque capacity without sacrificing everyday drivability. Designed, hand-built, and tested in the U.S.A., this kit delivers a confident, quick engagement with a comfortable pedal feel suited to a wide range of performance driving styles.

At the heart of the Stage 3 kit is a carbon semi-metallic puck disc with a high-torque sprung hub assembly — the leading puck clutch design in drivability, longevity, and torque capacity. The hub is double-sprung with spring cover reliefs for added flexibility, while heat-treated components provide superior strength and durability under both street and competition stress.

Kit Includes:

• High-clamp performance pressure plate
• Carbon semi-metallic 4 or 6-puck sprung hub disc assembly (6-puck standard on most applications; 4-puck available by request)
• High-torque sprung hub and disc assembly
• Release bearing
• Installation tool kit

Recommended Driving Applications:

• Street / Daily Performance Driving
• Drag Racing
• Drifting
• Road Racing
• Rallye
• Pulling
• Autocross

The Spec Stage 3 strikes the ideal balance between race-level performance and street usability. Good wear characteristics under both low and high stress conditions make it a versatile upgrade for drivers pushing beyond stock or Stage 2 clutch limits.