Spec Clutch SZ031-2 Stage Performance Clutch Kit - 1

The Spec Clutch SZ031-2 is a Stage 1 performance clutch kit designed for enthusiasts who demand improved engagement, durability, and versatility across a wide range of driving environments. As a non-self-ratcheting (non-SAC) design, this kit is engineered for use with the SPEC billet flywheel SZ03A-2 (sold separately), delivering a more linear pedal feel, higher clamp load capability, and enhanced RPM capacity compared to factory self-ratcheting setups. Installation is a direct bolt-in with no additional modifications required.

The friction disc features an integrally molded carbon Kevlar-based, high-performance organic lining that provides smooth engagement and long service life. The lining incorporates a steel-backed, multi-compound woven construction for strength under high clamp loads and elevated temperatures. The hub is double-sprung with spring cover relieves, offering torsional flexibility and reduced driveline shock, while heat-treated components ensure lasting strength and durability.

Key Features:

• Carbon Kevlar-based high-performance organic friction lining for smooth, consistent engagement
• Integrally bonded steel backing for strength under high clamp loads and temperatures
• High-clamp pressure plate for increased torque holding capacity
• Double-sprung hub with spring cover relieves for flexibility and vibration damping
• Heat-treated hub components for enhanced strength and long-term durability
• Non-SAC (non-self-ratcheting) design — requires SPEC billet flywheel SZ03A-2
• Includes bearing and installation tool kit
• Direct bolt-in installation, no modifications required

Recommended Driving Applications:

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

The SPEC Stage 1 is the ideal entry-level performance upgrade for drivers seeking a reliable, street-friendly clutch with the added capability to handle occasional track and off-road use. Note: This kit does not include a flywheel. It must be paired with SPEC billet flywheel SZ03A-2 for proper fitment and performance.