The Advanced Clutch Technology (ACT) Streetlite Flywheel 600145 is engineered for automotive enthusiasts who demand performance without compromising durability. This flywheel is significantly lighter than the factory unit, offering a reduction in rotational mass that enhances engine response and acceleration. Crafted from chromoly steel, the 600145 is designed for both street and drag racing applications, providing a robust solution for high-performance builds.
ACT utilizes a heat-treated forging process that enhances the strength and toughness of the flywheel. The induction-hardened ring gears extend the lifespan of the component, ensuring reliability under demanding conditions. The one-piece construction minimizes the risk of failure and optimizes heat transfer from the clutch disc, eliminating issues like warped inserts or loose ring gears.
Installation of the ACT 600145 flywheel requires a counterweight, which is not included in the package. However, flywheel bolts (10mm-1.25 x 20mm) and counterweight bolts (M8-1.0 x 20mm) are provided for secure mounting. For detailed installation instructions, click here.
The ACT Streetlite Flywheel 600145 is compatible with the following models:
Other Part Numbers:
ACT #act600145
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1986-1995 Mazda RX-7 |
RX-7 | 1986-1995 |
|
2004-2011 Mazda RX-8 |
RX-8 | 2004-2011 |

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.