Spec Clutch SF573F Stage 3 Plus Performance Clutch Kit

The SPEC SF573F Stage 3 Plus Clutch Kit is the flagship street/race clutch designed for heavily modified, high-torque engines that have outgrown the capacity of the standard Stage 3. As SPEC's premier single-disc offering, the Stage 3+ delivers the aggressive torque handling of a race clutch while maintaining a manageable, daily-driveable engagement that sets it apart from full competition units.

At the heart of the Stage 3+ is a full-faced carbon semi-metallic friction disc — a key distinction from the Stage 3's puck-style disc. This full-face design provides unparalleled friction coefficient, exceptional wear life, and smooth engagement characteristics in a single package. The high-clamp pressure plate ensures maximum clamping force to handle elevated torque loads without slippage.

The disc assembly features a double-sprung high-torque hub with spring cover reliefs for flexibility, and all hub components are heat-treated for long-term strength and durability. Every kit includes the bearing and alignment tool kit for complete installation.

Key Features:

• Full-faced carbon semi-metallic friction disc for superior life and drivability
• High-clamp pressure plate for maximum torque holding capacity
• Double-sprung, high-torque hub with heat-treated components
• Spring cover reliefs for pedal flexibility and engagement feel
• Includes throwout bearing and clutch alignment tool
• Made in the U.S.A.

Recommended Driving Applications: Street, Drag Racing, Drift, Road Racing, Pulling

The SPEC Stage 3+ is engineered for the driver who demands race-level torque capacity without sacrificing the daily drivability needed for street use. Pair with a SPEC billet flywheel for maximum performance and durability.