Spec Clutch SD163-2 Stage 3 Performance Clutch Kit

The Spec Clutch SD163-2 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand high torque capacity without sacrificing daily drivability. Delivering a comfortable pedal feel with quick, aggressive engagement, this kit strikes the ideal balance between street manners and performance capability.

Key Features:

• Carbon Semi-Metallic Disc: Available in 4 or 6 puck configuration (6 puck is standard on most applications; 4 puck available by request) — the industry-leading puck clutch in drivability, service life, and torque capacity
• High Clamp Pressure Plate: Increased clamping force for superior torque holding under both street and race conditions
• Double-Sprung Hub: Features spring cover relieves for enhanced flexibility and heat-treated components for long-term strength and durability
• Complete Kit: Includes high clamp pressure plate, disc assembly with sprung hub, release bearing, and installation tool kit
• Versatile Performance: Suitable for street, drag, drift, road race, rallye, pulling, and autocross applications
• USA Manufactured: Designed, hand-built, and tested in the United States

The Stage 3 sits within Spec's seven-stage single-disc performance lineup, positioned as the top street-oriented stage before transitioning into dedicated race kits. It delivers good wear characteristics under both low and high stress usage, making it a dependable choice for modified engines that see mixed street and track duty.