Spec Clutch SZ47MT3 Mini Twin Multi-Disc Clutch Kit X-Trim

The SPEC SZ47MT3 is a Mini Twin X-Trim multi-disc clutch and flywheel assembly engineered for high-performance street and motorsport applications. This two-disc clutch system is purpose-built for drivers who demand increased torque capacity and durability beyond what a single-disc setup can provide, making it well-suited for limited street, drag racing, road racing, drifting, time attack, pulling, and rallye use.

SPEC Mini Twin assemblies are available in a variety of clutch disc and flywheel materials, clamp loads, disc configurations, and diameters — all selected based on the specific demands of the application. Every unit is manufactured to an industry-leading tolerance of one thousandth of an inch (.001"), ensuring perfect rotational properties and concentric actuation that optimize balance, drivability, and long-term clutch life.

Key Features:

• X-Trim (MT3) multi-disc clutch and flywheel assembly
• Designed for limited street, drag, drift, road racing, time attack, pulling, and rallye
• Available in multiple disc materials and flywheel configurations
• Manufactured to .001" tolerance for precise rotational balance and concentric actuation
• Fully rebuildable by SPEC or the end user
• Replacement components and rebuild services available directly from SPEC
• SFI approved clutch kit

The SPEC Mini Twin X-Trim kit delivers the aggressive holding power required for high-horsepower builds while remaining rebuildable for long-term cost efficiency. Units are built with all-billet construction for smooth, quiet operation throughout the powerband.