Spec Clutch SO703 Stage 3 Performance Clutch Kit

The Spec Clutch SO703 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand high torque capacity without sacrificing everyday drivability. Combining aggressive engagement characteristics with a comfortable pedal feel, the Stage 3 strikes the ideal balance between street usability and performance-focused driving.

At the heart of this kit is a carbon semi-metallic puck disc paired with a high-clamp pressure plate and high-torque sprung hub assembly. The sprung hub is double-sprung with spring cover reliefs for enhanced flexibility, while heat-treated internal components provide lasting strength and durability under both low and high stress conditions.

Key Features:

• High-clamp performance pressure plate for increased clamping force
• Carbon semi-metallic friction material — industry-leading combination of drivability, service life, and torque capacity
• 4 or 6 puck disc configuration (6 puck standard on most applications; 4 puck available upon request)
• High-torque sprung hub and disc assembly with double-sprung design and spring cover reliefs
• Heat-treated hub components for superior strength and longevity
• Includes release bearing and installation tool kit
• SFI Approved

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

The SPEC Stage 3 is part of SPEC's street/strip clutch lineup (Stages 1–3+), making it suitable for high-performance street and track use without requiring a dedicated race-only setup. It is an excellent choice for drivers who demand serious grip and torque handling while retaining acceptable daily drivability.