Spec Clutch SV134 Stage 4 Performance Clutch Kit

The Spec Clutch SV134 Stage 4 Clutch Kit is engineered for heavily modified, high-output engines where maximum torque transfer, instantaneous engagement, and reduced rotating mass are the top priorities. This is a dedicated competition clutch — not intended for street use — and is purpose-built for drivers who demand uncompromising grip and response on the track.

The Stage 4 is a solid hub version of the Stage 3 clutch, featuring a high-clamp pressure plate and a carbon semi-metallic friction disc in 3, 4, or 6-puck configuration. The hub is a solid 8-rivet design, heat-treated for strength and durability, paired with a rigid carrier assembly. The 3-puck disc offers the lightest weight, the 6-puck provides the smoothest engagement of the puck options, and the 4-puck delivers a balanced compromise between the two.

What's Included:

• High-clamp performance pressure plate
• Carbon semi-metallic friction disc (3, 4, or 6-puck rigid hub configuration)
• High-torque rigid hub and carrier assembly
• Release bearing
• Installation tool kit

Intended Driving Applications:

• Drag Racing
• Road Racing
• Drifting
• Rallye
• Pulling
• Circle Track

Note: Due to the rigid hub design and aggressive engagement characteristics, this clutch kit is not recommended for street use. It is best suited for dedicated race and competition vehicles.