Spec Clutch SC681 Stage Performance Clutch Kit - 1

The SPEC SC681 Stage 1 Clutch Kit is engineered for naturally aspirated and mildly modified forced induction applications, delivering stock-like daily drivability alongside excellent long-term wear characteristics. Designed, hand-built, and tested in the U.S.A., this performance clutch kit is suitable for a wide range of driving disciplines including street, drag, drift, road race, rallye, pulling, and autocross.

At the heart of the SC681 is an integrally molded carbon kevlar-based, high-performance organic friction disc that provides smooth engagement and extended service life. The lining features an integrally bonded steel backing for added strength under high clamp loads and elevated temperatures.

Key Features:

• High clamp pressure plate for strong, reliable torque transfer
• Steel-backed, multi-compound woven organic friction material for smooth engagement and excellent wear life
• High-torque sprung hub and disc assembly for vibration damping and drivetrain protection
• Double-sprung hub with spring cover relieves for flexibility and heat-treated components for strength and durability
• Includes release bearing and installation tool kit
• SFI approved — every SPEC clutch kit and flywheel meets SFI standards
• Torque rating: up to 599 ft-lbs

Recommended Driving Applications: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross

SPEC Stage 1 is the ideal entry-level performance clutch upgrade for drivers who want a noticeable improvement over a stock OEM clutch without sacrificing everyday drivability. SPEC clutches are recommended for Stages 1–3+ for street/strip use.