Spec Clutch SA595 Stage 5 Full-Metallic Performance Clutch Kit

The Spec Clutch SA595 Stage 5 Clutch Kit is a full-metallic, race-grade clutch system engineered for heavily modified drag race and pulling applications that demand maximum torque capacity and aggressive engagement. Built around a sintered iron, full-faced disc with an unsprung (solid) hub, this kit delivers the highest possible friction coefficient available in the SPEC lineup.

The Stage 5 is technically street-drivable but is not intended for comfortable street use due to its firm, progressive engagement characteristics. It is ideally suited for dedicated competition vehicles or high-output builds where clutch performance and holding capacity are the priority over daily driveability.

Kit Includes:

• High-clamp performance pressure plate
• Full-metallic sintered iron friction disc — full-faced with unsprung solid hub
• Solid hub assembly with 12-rivet construction, heat-treated for strength and durability
• Release bearing
• Installation tool kit

Key Features:

• Full-metallic friction material for maximum coefficient of friction
• High-clamp pressure plate with adjustability available on select applications
• Solid hub disc assembly for direct, high-torque power transfer
• Heat-treated components for long-term durability under extreme loads
• Compatible with OE dual mass flywheel applications (verify fitment)
• 23-spline input shaft, 0.938 in. shaft diameter

Intended Use: Drag Racing, Pulling

Note: This is a competition-grade clutch. Due to the rigid iron disc assembly and high-clamp pressure plate, engagement is firm and progressive — not suited for typical street driving. For best results, consult a SPEC technical representative with your specific build details prior to ordering.