Spec Clutch SL54SST Super Twin SS-Trim Multi-Plate Clutch Kit

The SPEC SL54SST Super Twin SS-Trim Multi-Plate Clutch Kit is an extreme-duty twin disc clutch and flywheel system engineered for high-output street and track applications. Designed to handle 700–1,500 ft-lbs of torque, the Super Twin delivers race-proven holding power without sacrificing daily drivability. Designed, hand-built, and tested in the U.S.A., this kit is a complete, bolt-in solution requiring no shimming or setup.

Key Features:

• Extreme torque capacity – rated for 700 to 1,500 ft-lbs of torque at the flywheel
• Near-stock drivability – smooth, quiet engagement suitable for street and competition use
• All-billet construction – aircraft-grade aluminum and high-carbon billet steel components, precision-milled to an industry-leading .001-inch tolerance for perfect balance and actuation
• Carbon graphite friction discs – dampened, full-faced carbon graphite discs as standard; organic, fiber, and full-metallic disc options also available
• Maintenance-free operation – no shimming or periodic adjustment required
• User-rebuildable – can be rebuilt by the end user or returned to SPEC; replacement components and rebuild services are always available
• Complete kit – includes billet aluminum flywheel and track-spec hardware
• Versatile use cases – suited for street, drag, drift, road racing, time attack, pulling, and rallye

The SPEC Super Twin SS-Trim (SL54SST) is built to meet the demands of high-horsepower builds where a single-disc clutch is no longer sufficient. Its precision-machined billet components ensure consistent actuation and long service life, whether on the street or at the track.