Spec Clutch SB053F Stage 3 Plus Clutch Kit

The SPEC SB053F Stage 3 Plus (3+) Clutch Kit is the flagship stage for heavily modified street and race engines demanding more torque capacity than the standard Stage 3 can support. Engineered to deliver an impressively manageable and friendly engagement, the Stage 3+ is the ideal choice for high-powered builds that still require everyday drivability.

At the heart of this kit is a carbon semi-metallic full-faced friction disc that delivers an exceptional combination of long service life, high friction coefficient, and smooth street drivability in a single package. The hub is double-sprung with spring cover reliefs for added flexibility, while heat-treated internal components ensure lasting strength and durability under extreme loads.

Kit Includes:

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

Intended Driving Applications:

• Street Performance
• Drag Racing
• Drifting
• Road Racing
• Autocross
• Pulling
• Rally

The SPEC Stage 3+ sits at the top of SPEC's street-capable clutch lineup, stepping up from the Stage 3 with improved torque handling, better wear characteristics, and enhanced manageability — all while retaining the daily drivability required for street-driven vehicles. All SPEC clutch kits and flywheels are SFI Approved.