Spec Clutch ST513F Stage 3+ Clutch Kit with Carbon Metallic Disc & High Clamp Pressure Plate

The SPEC ST513F Stage 3 PLUS Clutch Kit is engineered for heavily modified street and competition engines that demand torque capacity beyond what the standard Stage 3 can deliver. Designed for serious performance applications, this kit strikes an impressive balance between aggressive holding power and daily drivability — making it one of the most versatile high-performance clutch solutions in the SPEC lineup.

Compared to the Stage 3, the Stage 3 PLUS offers improved manageability and enhanced wear characteristics, allowing it to survive the rigors of repeated hard launches and track sessions without sacrificing streetability. The full-faced carbon metallic friction disc provides superior heat resistance and consistent engagement across a wide range of operating conditions.

Kit Includes:

• High clamp performance pressure plate
• Full-faced carbon metallic friction disc
• High-torque sprung hub and disc assembly
• Release bearing
• Installation tool kit

Key Features:

• Carbon Metallic Friction Material — Exceptional heat tolerance and wear life under high-load conditions
• High Clamp Pressure Plate — Maximizes torque capacity for heavily modified engines
• Sprung Hub Design — Reduces drivetrain shock and improves drivability over unsprung alternatives
• Broad Application Range — Suitable for street, drag, drift, road race, and pulling disciplines

Intended Driving Disciplines: Street, Drag Racing, Drift, Road Racing, Pulling

The SPEC Stage 3 PLUS is the ideal step up for builds that have outgrown a Stage 3 clutch but require a more livable alternative to full race-spec Stage 4 or Stage 5 setups. All hardware and installation tooling are included for a complete, no-compromise upgrade.