Spec Clutch SO114 Stage 4 Clutch Kit - Carbon Semi-Metallic Racing Clutch

The Spec Clutch SO114 Stage 4 Clutch Kit is an extreme-performance clutch system engineered for heavily modified engines demanding maximum torque capacity and instantaneous engagement. Designed for competitive motorsport applications, this kit prioritizes performance over street manners, delivering uncompromising power transfer in drag racing, drifting, road racing, rally, pulling, and circle track environments.

At the heart of the Stage 4 system is a high-clamp pressure plate paired with a carbon semi-metallic friction disc available in 3, 4, or 6 puck configurations. The rigid hub and carrier assembly provide an aggressive, near-instant lockup that maximizes power delivery to the drivetrain. Note: Due to the harsh engagement characteristics inherent in this design, this clutch is not recommended for street use.

Key Features:

• High-clamp performance pressure plate for maximum clamping force
• Carbon semi-metallic friction disc — available in 3, 4, or 6 puck configurations
• Rigid hub and carrier assembly for high-torque applications
• Lightweight design optimized for performance and quick rev response
• Includes bearing and installation tool kit
• Instantaneous engagement profile

Intended Use:

• Drag Racing
• Drifting
• Road Racing
• Rally / Rallye
• Pulling
• Circle Track

The Spec Stage 4 clutch kit is built for competitors who demand the absolute maximum from their drivetrain. If your build features heavy power modifications and sees competition-only use, the SO114 delivers the clamping force and heat-resistant friction materials to handle it.