Spec Clutch SM723H Stage 2 Plus Performance Clutch Kit

The Spec Clutch SM723H Stage 2 Plus Clutch Kit is engineered for modified engines that demand more torque capacity than a standard Stage 2 clutch can handle, while still preserving the street-friendly engagement feel the Stage 2 is known for. Bridging the gap between the Stage 2 and Stage 3, this kit delivers a 15–20% higher torque capacity without sacrificing daily drivability.

At the heart of this kit is a full-faced multi-friction disc featuring carbon semi-metallic material on one side and Kevlar® on the other — a hybrid construction that balances aggressive torque holding with smooth, predictable engagement. The high-clamp pressure plate increases clamping force over stock for superior torque transfer, while the double-sprung hub with spring cover reliefs absorbs driveline shock and promotes longer disc life. All hub components are heat-treated for strength and durability.

Key Features:

• High-clamp performance pressure plate for increased torque capacity
• Full-faced composite multi-friction disc — carbon semi-metallic on one side, Kevlar® on the other
• Double-sprung hub with spring cover reliefs for flexibility and driveline shock absorption
• Heat-treated hub components for enhanced strength and longevity
• 15–20% higher torque capacity vs. Stage 2, with Stage 2 engagement feel
• Includes bearing and tool kit

Suitable Driving Applications: Street, Drag, Road Race, Rally, Pulling, Autocross

The SM723H is an ideal upgrade for enthusiasts running modified or forced-induction engines who need more holding power but still require a smooth, streetable clutch pedal feel. This kit is recommended for street/strip use (Stages 1–3+ are not race-only).