The ACT HC9-HDR4 is a high-performance clutch kit designed to elevate your driving experience, especially for those who love the thrill of racing. This kit features ACT's renowned Heavy Duty pressure plate, which utilizes a unique diaphragm design that enhances clamp load while minimizing deflection. This means not only increased clutch life but also a more reliable performance on the track.

One of the standout features of the HC9-HDR4 is its four-stage heat-treating process that each diaphragm undergoes, ensuring that you get unparalleled performance even under extreme conditions. The precision cover stampings add rigidity and consistency, making it a great choice for serious enthusiasts.

The 4-pad rigid race discs are crafted from high-quality ceramic friction materials, providing excellent heat tolerance. They come with a chrome-moly hub that’s heat-treated for enhanced strength and durability. Customers have noted that the lightweight and rigid design of this kit allows for quicker shifts and a smoother overall experience. However, be prepared for a harsher engagement, which many racers appreciate for the faster shifting it delivers.

Customer Feedback: Many users have praised the HC9-HDR4 for its performance on the track, stating that it offers a noticeable improvement in responsiveness. One customer mentioned, "The engagement is definitely aggressive, but once you get used to it, the quick shifts are a game changer!"

Install Instructions:

• For detailed installation instructions, CLICK HERE

Features:

• Light to moderate pedal effort with aggressive engagement and increased gear rattle.
• Moderate friction life, extended by ACT's exclusive diaphragm design; note that the rigid design may increase spline wear.
• Carefully engineered and precisely assembled for maximum performance.
• Recommended for race use only.
• 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability.

Specifications:

• Clutch Master Cylinder Included: No
• Grease Included: Yes
• Grade Type: Performance
• Flywheel Included: No
• Pilot Bushing Included: No
• Pressure Plate Type: Heavy Duty
• Release Bearing Included: Yes
• Clutch Disc Diameter: 8.4 in (214 mm)
• Disc Material: Ceramic
• Input Spline Quantity: 20
• Input Shaft Diameter: 0.875 in
• Alignment Tool Included: No
• Disc Type: Solid
• Pressure Plate Bolts Included: No
• Clutch Slave Cylinder Included: No
• Flywheel Bolts Included: No
• Pilot Bearing Included: No
• Product Weight: 9.7 lbs
• Torque Capacity: 305 ft/lbs
• Torque Capacity Over OE: 0.71

Fitment: This clutch kit is compatible with the Honda Civic from 2006 to 2015.