Spec Clutch SB662 Stage 2 Performance Clutch Kit

The Spec Clutch SB662 Stage 2 Clutch Kit is a high-performance upgrade engineered for mild to moderately modified naturally aspirated and power adder engines. It is equally well-suited for stock power applications where long service life and excellent daily drivability are the priority. Rated at up to 485 ft-lbs of torque capacity, this kit delivers meaningfully more holding power than stock while preserving the smooth, street-friendly engagement feel drivers expect.

Key Features:

• Pure Kevlar friction disc — segmented or full-faced configuration with steel backing for superior wear resistance and smooth engagement
• High-clamp pressure plate — increased clamping force over OEM for enhanced torque capacity
• Double-sprung hub assembly — spring cover reliefs for flexibility, with heat-treated components for long-term strength and durability
• Stock-like pedal feel — excellent daily drivability with no significant increase in pedal effort
• SFI Approved — every SPEC clutch kit meets SFI safety standards

Kit Includes:

• High-clamp pressure plate
• Segmented chatter-free pure Kevlar clutch disc with high-torque sprung hub
• Throw-out bearing
• Alignment tool

Recommended Driving Applications: Street, Drag, Pulling, Autocross

The Stage 2 is the ideal step up from Stage 1, offering slightly longer service life and higher torque capacity while maintaining the smooth, predictable engagement that makes it equally appropriate for daily driving and weekend performance use. Stages 1 through 3+ are recommended for street/strip applications.