Spec Clutch SM703F Stage 3 Plus Performance Clutch Kit

The SPEC SM703F Stage 3 Plus Clutch Kit is the flagship performance clutch solution engineered for heavily modified street machines and dedicated race vehicles that demand torque capacity beyond what the standard Stage 3 can deliver. Designed to handle extreme power while maintaining daily street manageability, the Stage 3+ strikes a rare balance between high-torque performance and livable engagement feel.

At the heart of the Stage 3+ is a carbon semi-metallic full-face friction disc — a material proven to deliver outstanding friction coefficient, exceptional wear life, and superior drivability characteristics in a single package. The disc hub is double-sprung with spring cover reliefs for enhanced flexibility under load, while heat-treated internal components ensure long-term strength and durability under repeated high-stress use.

Kit Includes:

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

Key Features:

• Engineered for heavily modified street and race engines exceeding Stage 3 torque thresholds
• Carbon semi-metallic full-face friction material for maximum life and friction coefficient
• Double-sprung hub with spring cover reliefs for smooth, flexible engagement
• Heat-treated hub components for strength and durability
• Better wear characteristics and improved manageability vs. standard Stage 3
• Suitable for street, drag racing, road racing, drifting, rally, and pulling applications

The SPEC Stage 3+ is ideal for drivers who need race-level torque capacity without sacrificing the daily drivability required for street use. Whether on the drag strip, road course, or driven to the track, the SM703F delivers consistent, confidence-inspiring clutch performance.