ACT Heavy Duty Race Sprung 4 Pad Clutch Kit w/ Prolite Flywheel 2013-2021 BRZ

The SB8-HDG4 kit combines ACT’s Heavy Duty pressure plate with a 4-pad spring-centered race disc for high-performance applications. The diaphragm-style pressure plate increases clamp load, reduces deflection, and maximizes clutch life. The 4-pad spring-centered disc damps torsional vibrations for quieter operation and resists failure under harsh conditions. Engagement is harsher, but shifting is faster. The 4-pad spring-centered disc is well-suited for smaller disc sizes and smaller engines.

Specs

• Torque Capacity: 349 ft/lbs (107% over OE)
• Disc Material: Ceramic
• Disc Diameter: 8.8 in / 224 mm
• Input Shaft Diameter: 1 in
• Pressure Plate Type: Heavy Duty
• Flywheel Type: Prolite
• Product Weight: 24.8 lbs

Performance Characteristics

• Feel: Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle
• Life: Moderate friction life, extended by ACT’s exclusive diaphragm design
• Quality: Precisely assembled, accurately balanced, uses ceramic friction materials for high heat tolerance and maximum performance
• Recommended Use: High horsepower street or race use
• ACT Difference: 100% clamp load tested, dynamically balanced for smooth high RPM reliability