Spec Clutch SC903F Stage 3 Plus Performance Clutch Kit

The Spec Clutch SC903F Stage 3 Plus is the flagship performance clutch kit designed for heavily modified, high-powered street and race engines that demand more torque capacity than the standard Stage 3 can deliver. Built for drivers who need maximum holding power without sacrificing daily drivability, the Stage 3+ strikes the ideal balance between aggressive performance and manageable street engagement.

At the heart of this kit is a full-faced carbon semi-metallic friction disc, engineered to provide exceptional friction coefficient, superior wear life, and confident drivability in a single package. The disc hub is double-sprung with spring cover reliefs for added flexibility under load, while heat-treated internal components ensure long-term strength and durability under extreme conditions.

Key Features:

• High-clamp pressure plate for increased torque capacity
• Full-faced carbon semi-metallic friction material for superior life and drivability
• High-torque sprung hub and disc assembly with double-sprung design
• Heat-treated hub components for enhanced strength and durability
• Complete kit includes bearing and installation tool kit
• Ideal upgrade over the Stage 3 for high-output and forced-induction applications

Recommended Driving Applications: Street, Drag Racing, Drifting, Road Racing, Pulling, Autocross, Rally

The SC903F Stage 3 Plus delivers the torque capacity required for serious performance builds while maintaining the pedal feel and engagement characteristics needed for everyday street use. A proper 500-mile break-in period is recommended to ensure optimal clutch performance and longevity.