If you're looking to upgrade your clutch setup, the ACT ZX4-HDSS Heavy Duty/Performance Street Sprung Kit is a solid choice. This kit combines ACT's renowned Heavy Duty pressure plate with their go-to street disc, and trust me, it’s a combo that delivers. The pressure plate features a unique diaphragm design that not only cranks up the clamp load but also minimizes deflection, which can really extend the life of your clutch. Plus, each diaphragm goes through a rigorous four-stage heat-treating process to ensure it holds up under pressure.
The pressure plate itself is built with precision cover stampings, giving it the rigidity you want for consistent performance. Now, let’s talk about the Performance Street disc. It's made from premium organic materials packed with high copper content, allowing for better heat transfer. The steel-backed lining boosts durability, so you won’t have to worry about it giving out on you. What’s more, the reduced marcel means quicker shifts, which is a game-changer when you're looking for that seamless driving experience.
Install Instructions:
Features:
Specifications:
Notes:
Products Fitment:
Mazda Mazda 3 (2007-2013)
Mazda Mazda 6 (2006-2007)
Other Part Numbers:
ACT #actZX4-HDSS
⚠ 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.