Spec Clutch SN355 Stage 5 Clutch Kit - Sintered Iron Full-Face Disc

The SPEC SN355 Stage 5 Clutch Kit is a full-race clutch system engineered for extreme performance applications, including drag racing, pulling competitions, and highly modified motorsport builds. Built around a full-metallic sintered iron disc, this kit delivers the highest possible friction coefficient available in SPEC's single-disc lineup, providing maximum torque holding capacity where lesser clutches simply cannot survive.

The Stage 5 disc uses a full-face, unsprung hub design with a solid 12-rivet hub assembly that is heat-treated for superior strength and durability under extreme thermal and mechanical stress. A high-clamp pressure plate works in conjunction with the aggressive friction material to ensure positive, consistent engagement under hard launches and heavy loads.

What's Included:

• High-clamp performance pressure plate
• Full-metallic sintered iron disc — full-face / unsprung hub
• Release bearing
• Installation tool kit

Key Features:

• Full-metallic friction material with maximum friction coefficient
• Solid 12-rivet hub — heat-treated for strength and durability
• High-clamp pressure plate for maximum torque transfer
• Ideal for drag racing and pulling applications
• Street-drivable but not street-friendly — harsh pedal effort and engagement characteristics
• SFI-approved SPEC clutch line

Recommended Applications: Drag racing, pulling, and extreme-duty motorsport use. Due to the aggressive nature of the sintered iron friction material, this clutch is not recommended for daily street driving. Consult a SPEC technical representative to confirm proper configuration for your specific build.