Spec Clutch SA443F-3 Stage 3 Plus Performance Clutch Kit

The SPEC SA443F-3 Stage 3+ Clutch Kit is the flagship street/race clutch stage engineered for high-powered vehicles that demand maximum torque capacity without sacrificing everyday drivability. Featuring a carbon semi-metallic full-faced friction disc, the Stage 3+ delivers an exceptional combination of long service life, high friction coefficient, and predictable engagement characteristics — all in a single complete kit.

The disc hub is double-sprung with spring cover reliefs for added flexibility under load, while heat-treated internal components provide the strength and durability needed for sustained high-performance use. The high-clamp pressure plate ensures a firm, consistent grip on the friction surface across a wide range of operating temperatures and driving conditions.

Key Features:

• Carbon semi-metallic full-faced friction material — unparalleled life, friction coefficient, and drivability in one package
• High-clamp pressure plate for maximum torque transfer and holding power
• Double-sprung hub with spring cover reliefs for flexibility and smooth engagement
• Heat-treated hub components for long-term strength and durability
• High-torque sprung hub and disc assembly engineered for aggressive applications
• Bearing and tool kit included for complete, ready-to-install convenience
• SFI Approved construction

Ideal Driving Applications:

• Street / Daily Driving
• Drag Racing
• Autocross
• Pulling
• Road Racing
• Rally / Rallye
• Drifting

SPEC manufactures all of its clutches and flywheels in the USA under strict tolerances, with flywheels held to a .001 machine tolerance for optimal rotational integrity. The Stage 3+ sits at the top of SPEC's street-capable lineup — stages 1 through 3+ are recommended for street and strip use, while stages 4 and 5 are reserved for full race-only applications.