Spec Clutch SA173H Stage 2 Plus Clutch Kit

The Spec Clutch SA173H Stage 2 Plus Clutch Kit is engineered for modified engines that demand more torque capacity than a standard Stage 2 clutch can handle — without sacrificing the street-friendly feel that makes daily driving practical. Bridging the gap between the Stage 2 and Stage 3, this kit delivers the smooth engagement and drivability of the Stage 2 with a 15–20% higher torque capacity.

Friction Disc: The multi-friction disc uses a full-faced configuration with carbon semi-metallic material on one side and Kevlar® on the other, providing excellent heat resistance, consistent bite, and long service life under demanding conditions.

Key Features:

• High-clamp pressure plate for increased clamping force on modified engines
• Composite carbon semi-metallic / Kevlar® multi-friction disc in full-faced configuration
• Double-sprung hub with spring cover reliefs for flexibility and smooth engagement
• Heat-treated hub components for superior strength and durability
• High-torque sprung hub and disc assembly for performance applications
• Bearing and installation tool kit included

Ideal Driving Applications: Street, Drag Racing, Road Racing, Rally, Pulling, Autocross, and Drifting

The SA173H offers outstanding wear characteristics and consistent performance across a wide range of driving styles, making it one of the most versatile performance clutch upgrades available for modified builds.