Spec Clutch SF662-2 Stage 2 Kevlar Clutch Kit

The Spec SF662-2 Stage 2 Clutch Kit delivers an ideal balance of street drivability and high-performance holding power for mild to moderately modified engines. Built around a segmented or full-faced pure Kevlar disc with steel backing, this kit offers noticeably longer service life and higher torque capacity than a Stage 1 clutch — without sacrificing the smooth engagement feel expected for daily driving. The double-sprung hub features spring cover reliefs for added flexibility, and all hub components are heat treated for long-term strength and durability. Suitable for street, drag, pulling, and autocross applications.

Key Features:

• High-clamp pressure plate for superior holding power
• Segmented or full-faced pure Kevlar friction disc with steel backing
• Double-sprung hub with spring cover reliefs for flex and heat-treated components for durability
• High-torque sprung hub and disc assembly
• Includes bearing and alignment tool kit
• Designed for street, drag, pulling, and autocross use

Installation Note: Unless using a new SPEC flywheel, the existing flywheel must be resurfaced prior to installation. A minimum 450-mile break-in period of primarily city/stop-and-go driving is required before full-throttle engagement, drag launching, or speed shifting. Failure to follow break-in procedures will void the warranty.