Spec Clutch SC683F Stage 3 Plus High-Performance Clutch Kit

The Spec Clutch SC683F Stage 3 Plus is the flagship performance clutch kit engineered for heavily modified street machines and dedicated race cars that demand maximum torque capacity with a manageable, street-friendly engagement. Rated to handle up to 967 ft/lbs of torque, the Stage 3+ steps beyond the standard Stage 3 by pairing a high-clamp pressure plate with a full-faced carbon semi-metallic friction disc — delivering superior bite, longer service life, and outstanding drivability characteristics in a single package.

At the heart of the Stage 3+ design is a double-sprung hub featuring spring cover reliefs for flexibility and heat-treated components for strength and durability. This construction helps absorb drivetrain shock and reduces NVH (noise, vibration, and harshness) that is typical in high-powered applications. The kit is designed for use with SPEC flywheels or compatible aftermarket single-mass flywheels, and all SPEC clutch kits and flywheels are SFI approved.

Kit Includes:

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

Intended Use:

• Street / Daily Driving
• Drag Racing
• Road Racing
• Drifting
• Pulling
• Autocross

The SC683F Stage 3 Plus offers an ideal balance between race-level torque capacity and everyday drivability, making it the go-to choice for serious performance builds that still see regular street use.