Spec Clutch SF503-9 Stage 3 Clutch Kit 6-Puck Carbon Semi-Metallic 9-Bolt

The SPEC SF503-9 Stage 3 Clutch Kit is a high-performance clutch system engineered for heavily modified street and race engines that demand aggressive yet streetable engagement with exceptional torque capacity. Rated at 755 ft-lbs of torque, this kit is purpose-built for power-adder applications and delivers the ideal balance of race-ready performance and daily drivability.

Key Features:

• Carbon Semi-Metallic 6-Puck Sprung Hub Disc — the leading puck clutch design for drivability, service life, and torque capacity
• High Clamp Pressure Plate — maximizes clamping force for reliable power transfer under high-stress conditions
• Double-Sprung Hub with spring cover relieves for enhanced flexibility and smooth engagement
• Heat-Treated Components for superior strength and long-term durability
• 9-Bolt Pressure Plate Cover Pattern — compatible with 9-bolt pattern flywheels
• 23-Spline Input — matches MT-82 and equivalent manual transmission applications
• Includes clutch alignment tool for simplified installation
• Also available in 3-puck configuration for different engagement preferences
• Made in the U.S.A.

Ideal Driving Applications:

• Street / Strip
• Drag Racing
• Road Racing
• Autocross
• Pulling
• Rallye
• Drift

The SPEC Stage 3 is part of SPEC's proven lineup of performance clutch kits, spanning Stage 1 through Stage 5 and multi-disc configurations. The Stage 3 hits the sweet spot for enthusiasts who need a clutch capable of handling serious power without sacrificing the pedal feel and engagement quality required for street use. Compatible with 9-bolt pressure plate pattern flywheels; SPEC modular flywheels are available in 6, 9, and custom 12-bolt patterns for broad compatibility.