ACT MB1-HDG4 Heavy Duty/Race Sprung 4 Pad Kit

Introducing the ACT MB1-HDG4 Heavy Duty/Race Sprung 4 Pad Kit, a clutch solution designed for those who demand performance without compromise. This kit features ACT's renowned Heavy Duty pressure plate, known for its exceptional clamp load and durability. Customers have praised the noticeable difference in their vehicle's responsiveness after installation, with many noting that it feels like a completely different car on the track.

Features & Benefits

Enhanced Performance: The exclusive diaphragm design increases clamp load, minimizes deflection, and extends clutch life—ideal for both high horsepower street and race applications.
Quiet Operation: The spring-centered race disc effectively dampens torsional vibrations, resulting in a smoother, quieter ride.
Durability: Each diaphragm undergoes a rigorous four-stage heat-treating process, ensuring reliability even under the most demanding conditions.
Precision Engineering: With precision cover stampings, this pressure plate provides both rigidity and consistency for optimal performance.
Fast Shifting: The 4-pad design allows for aggressive engagement, making shifting quicker and more responsive.

Technical Specifications

Clutch Disc Diameter: 8.8 in (224 mm)
Disc Material: Ceramic
Input Spline Quantity: 20
Input Shaft Diameter: 0.875 in
Torque Capacity: 415 ft/lbs
Product Weight: 11.7 lbs
Pedal Effort: Light to moderate

Customer Feedback

"After installing the MB1-HDG4, I couldn't believe the difference. The engagement is sharp, and I can feel the power transfer much better now. Definitely worth the investment!" - Mike T.

"I use this clutch on my race car, and it has held up beautifully. The shifting is so much quicker, and I love how it handles the heat. Highly recommend!" - Sarah L.