If you're looking to take your Scion FRS, Subaru BRZ, or Toyota GT-86 to the next level, the ACT HD/Race Sprung 4 Pad Kit (SB7-HDG4) is definitely worth considering. This kit features ACT's renowned Heavy Duty pressure plate, which is designed with a unique diaphragm that ramps up the clamp load. What does that mean for you? Less deflection and a longer clutch life, which is exactly what you want when you're pushing your car to its limits.
One of the standout features of this kit is the four-stage heat-treating process that the diaphragms undergo. It makes a noticeable difference in performance, ensuring that the pressure plate stays rigid and consistent even when things get heated—literally. Plus, the 4-pad spring-centered race disc is not just about looks; it dampens torsional vibrations, which means less noise and a more pleasant driving experience, even when you're really pushing it.
Now, I won’t sugarcoat it—the engagement is a bit harsher, but that’s part of the deal when you want faster shifting. This setup is particularly well-suited for smaller engines with smaller disc sizes. It’s a solid choice if you’re running a high horsepower setup, whether on the street or the track.
Some of the specs that might catch your eye include a clutch disc diameter of 8.8 inches (or 224 mm for those who prefer metric), and a robust torque capacity of 349 ft/lbs. That’s a serious upgrade over stock, giving you a 1.07x increase in torque capacity. And yes, it’s 100% clamp load tested and dynamically computer balanced, so you know it’s reliable at high RPMs.
Installation is straightforward, and if you need a hand, you can check out the install instructions here. Just a heads up, this kit does come with a Streetlite flywheel, so you’ll need to use that. Flywheel bolts and pressure plate bolts are included, which makes your life a little easier.
Here’s a quick rundown of what’s included:
Just remember, this isn’t a one-size-fits-all solution; it’s designed for enthusiasts who want to make their ride perform at its best. So if you’re ready to up your game, the ACT HD/Race Sprung 4 Pad Kit might just be the upgrade your car has been waiting for.
Other Part Numbers:
ACT #actSB7-HDG4
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| Scion FR-S | 2013-2016 | Base |
| Subaru BRZ | 2013-2020 | Base |
| Subaru BRZ | 2013-2019 | Premium |
| Subaru BRZ | 2013-2020 | Sport-tech |
| Subaru BRZ | 2013-2020 | Limited |
| Subaru BRZ | 2015 | Aozora Edition |
| Subaru BRZ | 2015 | Series.Blue |
| Subaru BRZ | 2016 | Series.HyperBlue |
| Subaru BRZ | 2017 | Series.Yellow |
| Subaru BRZ | 2018, 2020 | TS |
| Subaru BRZ | 2018-2020 | Sport-tech RS |
| Subaru BRZ | 2019 | Series.Gray |
| Toyota 86 | 2017-2020 | Base |
| Toyota 86 | 2017 | Special Edition |
| Toyota 86 | 2018-2020 | GT |
| Toyota 86 | 2019 | TRD Special Edition |
| Toyota 86 | 2020 | Hakone Edition |

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.