Spec Clutch SO703F Stage 3 Plus High-Performance Clutch Kit

The Spec Clutch SO703F Stage 3 Plus is the flagship performance clutch kit engineered for heavily modified street and race vehicles that demand torque capacity beyond what the standard Stage 3 can deliver. Designed for high-powered applications that still require a manageable, street-friendly engagement, the Stage 3+ strikes the ideal balance between aggressive holding power and daily drivability.

At the heart of this kit is a full-faced carbon semi-metallic friction disc — a material renowned for its outstanding friction coefficient, superior heat resistance, and exceptional wear life. The disc uses a high-torque sprung hub that is double-sprung with spring cover reliefs for added flexibility, while heat-treated components ensure long-term strength and durability under demanding conditions.

Key Features:

• High-clamp pressure plate for maximum clamping force and reduced slip under load
• Full-faced carbon semi-metallic friction material for superior life, drivability, and friction performance
• Double-sprung hub with spring cover reliefs for flexibility and smoother engagement
• Heat-treated hub components for enhanced strength and durability
• High-torque sprung hub and disc assembly
• Bearing and tool kit included

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

The SO703F Stage 3+ delivers a more manageable clutch feel and improved wear characteristics compared to the Stage 3, making it the go-to choice for performance builds that need serious torque capacity without sacrificing everyday usability.