Spec Clutch SN443F Stage 3 Plus Performance Clutch Kit

The Spec Clutch SN443F Stage 3 Plus is the flagship high-performance clutch kit engineered for heavily modified street and race engines that demand more torque capacity than the Stage 3 can deliver. Rated at 560 lb-ft of torque at the flywheel, it strikes the ideal balance between serious holding power and real-world daily drivability — offering better manageability and superior wear characteristics compared to the standard Stage 3.

At the heart of the Stage 3 Plus is a full-faced carbon semi-metallic friction disc, a material that delivers exceptional friction coefficient, extended service life, and smooth engagement in a single package. The hub is double-sprung with spring cover reliefs for added flexibility, while heat-treated components provide long-term strength and durability under sustained high-load conditions.

Kit Includes:

• High-clamp performance pressure plate
• Full-faced carbon semi-metallic friction disc
• High-torque sprung hub and disc assembly
• Release bearing
• Installation tool kit

Intended Use:

• Street (including demanding daily use)
• Drag Racing
• Drifting
• Road Racing
• Autocross
• Pulling

Spec Clutch designs and manufactures all of its products in-house at its facility in Bessemer, Alabama, holding components to strict tolerances to ensure optimal clutch and flywheel compatibility. All Spec clutch kits are proudly made in the USA.