Spec Clutch ST63PT-2 Super Twin P-Trim Multiplate Clutch Kit

The SPEC ST63PT-2 Super Twin P-Trim Multiplate Clutch Kit is engineered for high-output builds demanding extreme torque handling between 700 and 1,500 ft-lbs. Designed for both street and track environments, this twin-disc clutch system delivers near-stock drivability without sacrificing the holding power required for serious performance applications. Whether you're drag racing, drifting, road racing, time attacking, pulling, or rallying, the Super Twin is built to perform.

Premium Construction:

• All-billet construction using aircraft-grade aluminum and high-carbon billet steel for a smooth, quiet operation
• Components are precision-milled to an industry-leading .001-inch tolerance for perfect balance and actuation
• Friction surfaces use dampened, full-faced carbon graphite discs for consistent engagement
• Available friction material options: organic, fiber, and full metallic

Kit Includes:

• Infinitely rebuildable billet flywheel
• New master cylinder and billet slave cylinder with stainless steel lines and fittings
• All necessary installation and track-spec hardware

Key Benefits:

• No shimming or setup required — direct bolt-in installation with no fabrication needed
• Maintenance-free operation with exceptional service life
• Fully rebuildable by SPEC or the end user; replacement components and rebuild services are always available
• SFI Approved construction for added confidence in competition environments

Ideal for street, drag, drift, road racing, time attack, pulling, and rallye use. The SPEC Super Twin multiplate clutch system is the solution for builds that have outgrown conventional single-disc clutch setups.