Spec Clutch SN505-2 Stage 5 Clutch Kit Full-Metallic High Clamp

The Spec SN505-2 Stage 5 Clutch Kit is built for maximum performance in the most demanding driving conditions. Featuring a full-metallic friction disc with the highest available friction coefficient, this clutch delivers extreme clamping force and heat resistance required for serious drag racing and aggressive street applications. While technically street drivable, the Stage 5 is purpose-built for performance — not daily comfort.

The disc assembly uses a solid 12-rivet hub construction and is fully heat-treated for exceptional strength and long-term durability under repeated high-load engagement. This is Spec's most aggressive clutch stage, engineered for drivers who demand maximum torque transfer and uncompromising holding power.

Key Features:

• Full-metallic friction material — highest possible friction coefficient for maximum grip
• High clamp pressure plate — increased clamping load for extreme torque applications
• Solid 12-rivet hub and disc assembly — heat-treated for strength and durability
• Includes bearing and tool kit — everything needed for installation

Recommended Driving Applications:

• Street (extreme)
• Drag Racing
• Pulling
• Autocross

The Spec Stage 5 is the top of the performance ladder — ideal for high-horsepower builds where holding capacity and pedal feel are secondary to raw performance and reliability under load.