If you're serious about your Porsche's performance, you might want to take a closer look at the ACT Heavy Duty/Performance Street Rigid Kit PO1-HDSD. This isn't just another clutch kit; it's built for those who want to push their ride to the limit while still keeping it street-friendly. The heart of this kit is ACT's Heavy Duty pressure plate, which is pretty much their best-seller for a reason. With a unique diaphragm design, it cranks up the clamp load, cuts down on deflection, and helps your clutch last longer. Seriously, these pressure plates go through a four-stage heat-treating process, which means they’re tough and ready for action.
The performance street rigid-hub discs are where things get really interesting. They're made from premium organic materials that have a high copper content, so you get better heat transfer when you're really pushing it. Plus, the steel-backed lining gives you that extra burst strength and durability you need on the street or track. And let’s not forget about the chrome-moly hub, which is heat-treated for added strength. This clutch disc is designed to be lightweight, meaning quicker shifts and a more responsive driving experience. You get race-ready performance without sacrificing daily drivability.
Installation is straightforward, but if you want a little guidance, you can check out the installation instructions here.
Here’s what you can expect:
Specifications:
Fits:
In short, if you want a clutch kit that’s tough, reliable, and ready for both the street and the track, this ACT kit has got your back. It’s built to perform, and you’ll feel the difference the moment you hit the gas.
Other Part Numbers:
ACT #actPO1-HDSD
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1991-1994 Porsche 964 |
964 | 1991-1994 |
|
1994-1998 Porsche 993 C2/C4 |
993 C2/C4 | 1994-1998 |
|
1996-1998 Porsche 993 Targa |
993 Targa | 1996-1998 |
|
1996-1997 Porsche 993 Turbo |
993 Turbo | 1996-1997 |

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.