Spec Clutch SD163 Stage 3 Clutch Kit

The SPEC Stage 3 Clutch Kit (SD163) is engineered for heavily modified street and race engines that demand maximum holding power without sacrificing daily drivability. Featuring a high clamp pressure plate and a carbon semi-metallic friction disc, this kit delivers quick, positive engagement with a comfortable pedal feel and strong wear characteristics under both low and high stress conditions.

Key Features:

• High clamp pressure plate for increased clamping force over stock
• 4 or 6 puck carbon semi-metallic friction disc — 6 puck is standard on most applications; 4 puck available when specified at time of ordering
• High torque sprung hub disc assembly for smooth power transfer and reduced drivetrain shock
• Includes release bearing and installation tool kit for a complete, ready-to-install package
• Good wear characteristics for both street and competition use
• Suitable for sustained daily driving with aggressive capability on demand

Intended Use: Street, Drag Racing, Drifting, Road Racing, Rallye, Pulling, and Autocross

The SPEC SD163 Stage 3 kit is the ideal upgrade for drivers who need a clutch that bridges the gap between street manners and all-out performance — offering the reliability and longevity to handle repeated hard launches and high-heat race environments.