Spec Clutch SA603F Stage 3 Plus Performance Clutch Kit

The Spec Clutch SA603F Stage 3 Plus is the flagship performance clutch kit engineered for heavily modified street machines and race vehicles that demand maximum torque capacity with a still-manageable, street-friendly engagement. Designed to handle torque loads beyond what the standard Stage 3 can support, the Stage 3 Plus delivers superior wear characteristics without sacrificing daily drivability.

At the core of this kit is a full-faced carbon semi-metallic friction disc — a material chosen for its exceptional combination of long service life, high friction coefficient, and smooth engagement characteristics that no puck-style disc can match in a single package. The sprung hub assembly is double-sprung with spring cover reliefs for added flexibility under load, and heat-treated components ensure lasting strength and durability under extreme operating conditions.

Kit Includes:

• High-clamp performance pressure plate
• Full-faced carbon semi-metallic friction disc
• High-torque sprung hub and disc assembly
• Release bearing
• Installation tool kit

Intended Driving Applications:

• Street / Daily Driver (heavily modified)
• Drag Racing
• Drifting
• Road Racing
• Pulling
• Autocross
• Rallye

Every Spec clutch kit is SFI approved and manufactured to exacting tolerances, making the SA603F a trusted choice for enthusiasts who need performance and reliability in one complete package.