Spec Clutch SJ402 Stage 2 Performance Clutch Kit

The Spec Clutch SJ402 Stage 2 Clutch Kit is engineered for mild to moderately modified naturally aspirated and power adder engines, delivering an ideal balance of increased holding power and stock-like daily drivability. It also performs exceptionally well at stock power levels, making it a smart long-term investment for spirited street driving where longevity and engagement quality are priorities.

At the heart of the Stage 2 kit is a pure Kevlar friction disc with steel backing — available in segmented or full-faced configurations depending on application. Compared to the Stage 1, this disc offers slightly longer service life and a higher torque capacity while maintaining the same smooth, predictable engagement feel drivers expect on the street.

Kit Includes:

• High-clamp performance pressure plate
• Pure Kevlar friction disc with steel backing
• High-torque sprung hub and disc assembly
• Release bearing
• Alignment tool for simplified installation

Key Features:

• Pure Kevlar friction material for excellent wear characteristics and long service life
• High-clamp pressure plate for increased torque holding capacity over stock
• High-torque sprung hub dampens driveline shock for smooth street engagement
• Heat-treated hub components for enhanced strength and durability
• Manufactured in the U.S.A.
• SFI Approved

Ideal Driving Applications: Street, Drag, Pulling, Autocross

The SPEC Stage 2 is the go-to upgrade for drivers who want meaningfully more clutch performance than stock without giving up comfortable everyday driveability. It bridges the gap between a factory replacement and an aggressive race clutch, making it a versatile choice across a wide range of performance builds.