Spec Clutch SF371 Stage Performance Clutch Kit - 1

The SPEC SF371 Stage 1 Clutch Kit is a high-performance upgrade engineered for bolt-on naturally aspirated engines and mildly modified forced induction applications. It delivers stock-like daily drivability combined with SPEC's renowned holding power, making it an ideal choice for street driving and performance use alike.

At the heart of this kit is SPEC's signature high-clamp pressure plate paired with a steel-backed, multi-compound woven organic disc. This integrally bonded steel backing provides exceptional strength under high clamp loads and elevated temperatures, while the organic lining compound ensures smooth, predictable engagement and outstanding wear life. The assembly includes a high-torque sprung hub designed to absorb driveline shock and reduce transmission wear.

Kit Includes:

• High-clamp performance pressure plate
• Steel-backed multi-compound woven organic clutch disc
• High-torque sprung hub assembly
• Release bearing
• Alignment tool kit

Performance Specifications:

• Torque Rating: Up to 270 ft-lbs
• Disc Material: Multi-compound woven organic with steel backing
• Hub Type: Sprung (double sprung with spring cover relieves for added flexibility)
• Hub Components: Heat-treated for strength and durability

Intended Use:

• Street
• Drag Racing
• Drift
• Road Racing
• Rallye
• Pulling
• Autocross

The SPEC Stage 1 is the entry point into SPEC's acclaimed clutch lineup, offering a substantial upgrade over OEM clutches while retaining a comfortable, daily-driver-friendly pedal feel. Heat-treated hub components and the high-clamp pressure plate ensure long service life even under demanding conditions.