Spec Clutch SV321 Stage Performance Clutch Kit - 1

The Spec Clutch SV321 Stage 1 Clutch Kit is a high-performance upgrade engineered for bolt-on naturally aspirated and mildly modified forced induction engines. It delivers stock-like daily drivability with exceptional wear characteristics, making it an ideal choice for drivers who want a meaningful performance improvement without sacrificing everyday usability.

At the heart of this kit is an integrally molded carbon Kevlar-based, high-performance organic disc lining that provides smooth clutch engagement and excellent service life. The lining features an integrally bonded steel backing for strength under high clamp loads and elevated temperatures. A high-clamp pressure plate works in combination with a multi-compound woven organic material disc and a high-torque double-sprung hub assembly — the double-sprung design uses spring cover reliefs for flexibility, while heat-treated hub components ensure long-term strength and durability.

Kit Includes:

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

Intended Use:

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

Installation Note: If not using a new SPEC flywheel, the existing flywheel must be resurfaced prior to installation. A minimum 450-mile break-in period — primarily city and stop-and-go driving — is required before full-throttle engagement or aggressive launches.