Spec Clutch SC171 Stage Performance Clutch Kit - 1 with Organic Disc

The SPEC SC171 Stage 1 Clutch Kit is a high-performance upgrade engineered for drivers who demand smooth daily drivability without sacrificing track-ready holding power. Built around an integrally molded carbon Kevlar-based organic friction lining, this clutch delivers smooth, stock-like engagement feel while offering significantly improved wear characteristics and torque capacity over a factory clutch.

The disc's friction material features an integrally bonded steel backing for structural integrity under high clamp loads and elevated operating temperatures. The hub is double-sprung with spring cover reliefs, providing excellent driveline flexibility and vibration dampening, while heat-treated internal components ensure long-term strength and durability.

Key Features:

• Carbon Kevlar-based high-performance organic friction lining for smooth engagement and long service life
• Integrally bonded steel-backed disc for strength under high clamp loads and temperatures
• High-clamp performance pressure plate for increased torque capacity
• Steel-backed, multi-compound woven organic friction material
• Double-sprung hub with spring cover reliefs for flexibility and vibration absorption
• Heat-treated hub components for enhanced strength and durability
• Includes bearing and installation tool kit
• Designed for use with OE dual mass flywheel
• 8.500 in. (216mm) disc diameter
• 20-spline input shaft, 0.875 in. shaft diameter

Suitable Driving Applications: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross

The SPEC Stage 1 is the ideal entry-level performance clutch — a direct replacement for the stock clutch that retains everyday drivability while providing the durability and torque capacity needed for spirited street driving and light track use. SPEC clutch kits are SFI approved and manufactured to precise tolerances for consistent, reliable performance.