Spec Clutch SD08ET-3 Super Twin E-Trim Sintered Iron Multi-Disc Clutch Kit

The Spec Clutch SD08ET-3 Super Twin E-Trim is a high-performance dual-disc clutch and flywheel kit engineered for street and track applications in vehicles producing extreme horsepower and torque — rated to handle 700–1,500 ft-lbs of torque at the flywheel. Designed with near-stock drivability in mind, this twin-disc system delivers a smooth, refined feel without sacrificing the grip and holding power demanded by serious builds.

The E-Trim configuration features two full-face sintered iron friction discs — the same high-friction material used in SPEC's Stage 5 single-disc kits — making this trim ideally suited for limited street and drag racing use where maximum torque capacity is the priority.

Key Features:

• Sintered Iron Dual Discs: Two full-face sintered iron discs provide maximum friction and heat resistance for high-output applications
• All-Billet Construction: Aircraft-grade aluminum and high-carbon billet steel components machined to industry-leading .001-inch tolerances for perfect balance and smooth actuation
• Bolt-In Installation: No shimming or setup required — straightforward bolt-in fitment with track-spec hardware included
• Flywheel Included: Billet steel flywheel and all track-spec hardware are included in the kit
• Rebuildable Design: Fully rebuildable by SPEC or the end user; replacement components and rebuild services are always available
• Maintenance-Free Operation: Smooth, quiet performance with no routine maintenance required
• Versatile Performance: Suitable for street, drag racing, drifting, road racing, time attack, pulling, and rally driving

The SPEC Super Twin E-Trim multi-disc clutch kit is the go-to solution for builds pushing the limits of torque capacity, combining race-proven engineering with the durability needed for long-term use in the most demanding performance environments.