Spec Clutch SO123 Stage 3 Performance Clutch Kit - 6-Puck Carbon Semi-Metallic

The Spec Clutch SO123 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand aggressive torque capacity without sacrificing daily drivability. Delivering a comfortable pedal feel and quick, confident engagement, the Stage 3 is the go-to choice for drivers who push their vehicles hard across a wide range of performance disciplines.

Key Features:

• Carbon semi-metallic 6-puck sprung hub disc — the leading puck clutch design for optimal balance of drivability, service life, and torque capacity
• High-clamp pressure plate for maximum clamping force under high-stress conditions
• Double-sprung hub with spring cover reliefs for flexibility and heat-treated components for long-term strength and durability
• High-torque sprung hub and disc assembly designed for aggressive yet streetable engagement
• Bearing and tool kit included for a complete installation-ready package
• Available in 4-puck or 6-puck configuration — 6-puck is standard on most applications; 4-puck available upon request at time of ordering
• Disc diameter: 9.500 in. (241 mm)
• Input shaft diameter: 0.850 in. with 20-spline input
• Designed, hand-built, and tested in the U.S.A.

Intended Use: Street, Drag Racing, Drift, Road Racing, Rallye, Pulling, Autocross

The Stage 3 offers excellent wear characteristics under both low and high stress usage, making it an ideal upgrade for performance enthusiasts who require race-level holding power with enough refinement for regular street driving.