Spec Clutch SB003HS-2 Stage 2+ Performance Clutch Kit

The Spec Clutch SB003HS-2 is a Stage 2+ performance clutch kit designed for the MINI Cooper S (R55, R56, R57, R58, R59 chassis). Engineered to bridge the gap between street usability and motorsport performance, this kit delivers significantly higher torque capacity without sacrificing everyday drivability.

At the heart of this kit is a multi-friction disc combining carbon semi-metallic on one face and Kevlar on the other. This dual-material configuration provides approximately 15–20% higher torque capacity than a standard Stage 2 clutch, while retaining the smooth, progressive engagement feel that Stage 2 is known for.

The sprung hub design features a double-sprung hub with spring cover reliefs for added flexibility, and all hub components are heat-treated for superior strength and long-term durability under demanding conditions.

Key Features:

• Stage 2+ multi-friction disc with carbon semi-metallic and Kevlar configuration
• 15–20% higher torque capacity over Stage 2 clutches
• Maintains Stage 2-like drivability and smooth engagement quality
• Double-sprung hub with spring cover reliefs for flexibility
• Heat-treated components for strength and long-term durability
• Designed and hand-built in the U.S.A.

Suitable for a wide range of driving environments including street, drag, autocross, road racing, rallye, and drift applications. The SB003HS-2 is an ideal upgrade for MINI Cooper S owners seeking a performance clutch that can handle spirited driving and occasional track use without compromising daily driveability.