Spec Clutch ST66SST Super Twin SS-Trim Multiplate Clutch Kit

The SPEC ST66SST Super Twin SS-Trim Multiplate Clutch Kit is engineered for high-performance street and track applications where extreme power output demands a clutch system that can keep pace. Rated to handle between 700 and 1,500 ft-lbs of torque, this twin-disc clutch delivers the holding power required for serious builds without sacrificing the smooth, predictable engagement feel expected on the street.

Key Features:

• Dual-disc design provides dramatically increased torque capacity over single-disc alternatives while maintaining near-stock drivability
• Aircraft-grade aluminum and high-carbon billet steel construction, precision-milled to an industry-leading .001-inch tolerance for perfect balance and smooth actuation
• Dampened, full-faced carbon graphite friction discs deliver consistent, controlled engagement under extreme load
• Multiple friction material options available — organic, fiber, and full metallic — to suit specific driving applications
• No shimming or setup required — bolt-in installation with zero need for special tools or adjustment
• Maintenance-free operation with a quiet, vibration-free all-billet construction
• Fully rebuildable by SPEC or the end user; replacement components and rebuild services are always available
• Flywheel and track-spec hardware included in every kit

The ST66SST Super Twin is purpose-built to handle the full spectrum of high-demand driving disciplines, including street, drag racing, drifting, road racing, time attack, pulling, and rallye. Whether you're chasing quarter-mile times or pushing hard through technical corners, the SPEC Super Twin delivers the durability, balance, and responsiveness that extreme horsepower applications require.