If you're looking to up your clutch game, the ACT Heavy Duty/Race Sprung 6 Pad Kit (ZX4-HDG6) is where it’s at. This kit packs a punch with ACT's most trusted heavy-duty pressure plate. The design is pretty slick, featuring a diaphragm that cranks up the clamp load while keeping deflection to a minimum. That means you get a clutch that lasts longer and performs better, even when you're pushing it to the limit.
What’s cool is that each diaphragm goes through a four-stage heat-treating process. This isn’t just some marketing fluff; it really enhances performance and durability. The precision cover stampings give you that extra bit of rigidity and consistency you want when you're in the thick of things.
Now, let’s talk about the 6-pad, spring-centered race disc. It’s designed to dampen those torsional vibrations, which is a lifesaver when you're really pushing your ride. Sure, engagement is a bit harsher, but that just means you’re shifting faster—perfect for those who crave quick gear changes. And if you’re running a larger clutch size, this disc can handle the heat like a champ.
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ACT #actZX4-HDG6
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2007-2013 Mazda Mazda 3 |
Mazda 3 | 2007-2013 |
|
2006-2007 Mazda Mazda 6 |
Mazda 6 | 2006-2007 |

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.
ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.
Why ACT? Because Power Without Control Is Useless.ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.
Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.
What ACT Offers:ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.
Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.