SPEC takes its twin-disc clutch to a new level with the Super Carbon clutch. It utilizes carbon discs, which were originally considered not friendly on the street due to expense and misconceptions of its reliability. That has all changed with the Super Carbon multi-disc clutch and its 1,500 lb-ft of torque rating, light rotating weight, and reasonable cost. SPEC tested it in racing arenas before bringing a street version of the clutch to market. The lighter weight helps in drivetrain longevity as well.