The ACT ZM8-HDG6 HD/Race Sprung 6-Pad Clutch Kit is designed for high-performance street and race applications. This kit fits select 2004-2007 and 2010-2011 Mazda RX-8 models. It combines ACT's Heavy Duty pressure plate with a spring-centered, 6-pad race disc to provide increased clamp load, fast shifting response, and dependable performance under demanding conditions. Verify vehicle application details before purchase.

The Heavy Duty pressure plate uses an exclusive diaphragm design to help increase clamp load, reduce deflection, and support extended clutch life. Each diaphragm undergoes a four-stage heat-treating process for consistent performance. Precision cover stampings add rigidity and promote reliable operation, while every pressure plate is clamp-load tested and dynamically computer balanced for smooth performance at high engine speeds.

The spring-centered 6-pad race disc uses carefully selected ceramic friction materials for high heat tolerance and aggressive engagement. Reinforced spring retainers feature wraparound spring windows and thicker stampings to support the springs, reduce stress concentrations, and improve strength and reliability. The disc helps damp torsional vibrations and resist failure during hard use. Engagement is harsher than a conventional street clutch, but the faster shifting response makes this design suitable for high-horsepower street vehicles and race use. It is recommended for larger clutch sizes that can absorb more heat.

With light to moderate pedal effort, the ACT ZM8-HDG6 offers a performance-focused balance between drivability and competition-oriented response. Depending on the vehicle and drivetrain, some gear rattle may occur. The friction material is designed for moderate service life, which can be extended by ACT's diaphragm design and proper installation. This clutch kit is carefully engineered, precisely assembled, and accurately balanced for reliable performance. It is backed by ACT's one-year warranty.

• Excellence in Performance, backed by ACT's one-year warranty.

Features:

• Heavy Duty pressure plate: Exclusive diaphragm design increases clamp load, reduces deflection, and supports extended clutch life.


• 6-pad sprung race disc: Provides aggressive engagement, fast shifting response, and torsional vibration damping.


• Ceramic friction material: Delivers high heat tolerance for high-performance street and race applications.


• Reinforced spring retainers: Wraparound spring windows and thicker stampings improve spring support, strength, and reliability.


• Precision balanced assembly: Clamp-load tested and dynamically computer balanced for smooth high-RPM performance.


• Vehicle compatibility: Fits select 2004-2007 and 2010-2011 Mazda RX-8 applications.