Spec Clutch SF673 Stage 3 Clutch Kit

The SPEC Stage 3 Clutch Kit (SF673) is engineered for heavily modified street and race engines that demand serious clamping force without sacrificing everyday drivability. This kit delivers a comfortable pedal feel with quick, responsive engagement, making it a versatile choice for high-performance builds that see both street and track use.

At the heart of the Stage 3 system is a high-clamp pressure plate paired with a 4 or 6 puck carbon semi-metallic friction disc featuring a high-torque sprung hub assembly. The sprung hub design helps absorb driveline shock, improving longevity and smoothing engagement under aggressive driving conditions. The 6-puck configuration is standard on most applications, while the 4-puck disc can be specified at the time of ordering for applications where it is preferred.

Kit Includes:

• High-clamp performance pressure plate
• 4 or 6 puck carbon semi-metallic friction disc with high-torque sprung hub
• Release bearing
• Installation tool kit

Ideal Driving Applications:

• Street / Daily Driven
• Drag Racing
• Drifting
• Road Racing
• Rallye
• Pulling
• Autocross

SPEC's Stage 3 kit offers excellent wear characteristics under both low and high-stress conditions, making it one of the most well-rounded performance clutch upgrades available for modified vehicles.