Spec Clutch SD063F Stage 3 Plus High-Performance Clutch Kit

The SPEC SD063F Stage 3 Plus Clutch Kit is the flagship performance clutch solution for heavily modified street and race engines that have exceeded the torque capacity of the standard Stage 3. Engineered for drivers who demand maximum holding power without sacrificing daily drivability, the Stage 3 Plus delivers a more manageable engagement feel than the Stage 3, along with superior wear characteristics for extended service life.

At the heart of the Stage 3 Plus is a full-faced carbon semi-metallic friction disc — a significant upgrade over the 6-puck design of the Stage 3 — that provides unparalleled friction coefficient, exceptional service life, and smooth, predictable engagement in a single package. The hub is double-sprung with spring cover reliefs for added flexibility, while heat-treated internal components deliver the strength and durability needed for demanding performance applications.

Kit Includes:

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

Intended Use:

• Street (daily drivability retained)
• Drag Racing
• Drifting
• Road Racing
• Rallye
• Pulling
• Autocross

SPEC clutches are designed, hand-built, and tested in the U.S.A., reflecting SPEC's commitment to precision manufacturing and race-proven performance.