Spec Clutch SP143 Stage 3 Performance Clutch Kit

The Spec Clutch SP143 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand serious torque capacity without sacrificing daily drivability. This kit delivers a comfortable pedal feel with quick, aggressive engagement and proven wear characteristics under both low and high-stress driving conditions.

At the heart of the Stage 3 kit is a carbon semi-metallic puck disc — available in 4-puck or 6-puck configuration (6-puck is standard on most applications; 4-puck available by request) — paired with a high-torque sprung hub assembly. The hub is double-sprung with spring cover reliefs for flexibility, and features heat-treated components for long-term strength and durability.

Kit Includes:

• High-clamp performance pressure plate
• Carbon semi-metallic 4 or 6-puck sprung hub disc assembly
• Release bearing
• Installation tool kit

Ideal Driving Applications:

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

Designed, hand-built, and tested in the U.S.A., the SPEC Stage 3 is the go-to upgrade for drivers who need a high-performance clutch that can handle the abuse of competition while remaining streetable for everyday use.