Spec Clutch SF383 Stage 3 Clutch Kit - Carbon Semi-Metallic 6-Puck

The Spec Clutch SF383 Stage 3 Clutch Kit is engineered for heavily modified street and race vehicles that demand aggressive engagement without sacrificing daily drivability. Designed for drivers who push their cars hard across a variety of performance disciplines, this kit delivers a balanced combination of high torque capacity, responsive pedal feel, and long-term wear resistance.

At the heart of the SF383 is a carbon semi-metallic 6-puck sprung hub disc — the industry's benchmark for puck clutch drivability, service life, and torque handling. The double-sprung hub features spring cover reliefs for added flexibility, while heat-treated internal components provide the strength and durability required under sustained high-stress conditions. A high-clamp pressure plate ensures firm, consistent clamping force across the full RPM range.

Kit Includes:

• High-clamp pressure plate
• Carbon semi-metallic 6-puck sprung hub disc assembly (4-puck available by request)
• High-torque sprung hub and disc assembly
• Release bearing and installation tool kit

Intended Driving Applications:

• Street / Daily Driven Performance
• Drag Racing
• Drift
• Road Racing
• Rallye
• Pulling
• Autocross

The SF383 represents an ideal upgrade for enthusiasts who need a clutch that transitions smoothly between street commuting and track duty. The carbon-graphite friction material provides consistent bite and excellent thermal resistance, while the sprung hub design helps absorb driveline shock for a more manageable engagement feel.