SPEC ST63SST Super Twin SS-Trim Multi-Plate Clutch Kit

The SPEC ST63SST Super Twin SS-Trim Multi-Plate Clutch Kit is engineered for street and track applications demanding extreme power handling. Rated to manage 700–1,500 ft-lbs of torque, this twin-disc assembly delivers the holding power required for high-horsepower builds without sacrificing everyday drivability.

Key Features:

• Near-stock drivability — smooth, quiet operation suitable for both street and competition use
• All-billet construction — aircraft-grade aluminum and high-carbon billet steel components
• Industry-leading .001-inch machining tolerance — ensuring perfect rotational balance and precise actuation
• Dampened, full-face carbon graphite friction discs — provide consistent, controlled engagement
• No shimming or setup required — true bolt-in installation with no special alignment tools needed
• Maintenance-free operation with exceptional service life
• User-rebuildable design — components can be serviced by SPEC or by the end user; replacement parts and rebuild services are available
• Flywheel and track-spec hardware included in every kit
• Available friction disc options: organic, fiber, and full metallic

Designed for the most demanding performance driving environments, the Super Twin SS-Trim is well-suited for street driving, drag racing, drifting, road racing, time attack, rallye, and pulling. With a rebuildable architecture and modular design, this clutch system offers long-term value for serious performance builds.