If you're looking to upgrade your clutch setup, the TK1-HDSS kit from ACT is worth checking out. This isn't just any clutch kit; it combines the best features from ACT s Heavy Duty pressure plate and their most popular street disc. I ve had my fair share of clutches, and let me tell you, this one really stands out. The diaphragm design on the pressure plate is a game changer it ramps up the clamp load, cuts down on deflection, and seriously extends the life of the clutch. Plus, they go through a four-stage heat-treating process that really boosts performance. You can feel the difference when you re pushing it hard on the streets or the track.
The pressure plate itself is built like a tank with precision cover stampings, which means it s rigid and consistent no flexing under pressure. And the Performance Street disc? It s made from premium organic materials with a high copper content, which helps with heat transfer. That means less fade when you re really putting the pedal to the metal. The steel-backed lining gives it extra burst strength, so you know it can handle the heat. I ve noticed the reduced marcel makes for quicker shifts, which is a nice touch, especially in spirited driving situations.
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So if you re in the market for a clutch that can handle the heat and give you that smooth, reliable performance you crave, the TK1-HDSS kit is definitely worth considering. It s built for those who appreciate the finer points of driving and want something that can really deliver on the road.
Other Part Numbers:
ACT #actTK1-HDSS
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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.