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  See more parts for Acura RSX
Select the year of your Acura RSX:
ACT XACT Flywheel Prolite Acura RSX | TSX | Honda Civic 2002-2011 - 600125
ACT XACT Flywheel Prolite Acura RSX | TSX | Honda Civic 2002-2011 - 600125 - Image 3 ACT XACT Flywheel Prolite Acura RSX | TSX | Honda Civic 2002-2011 - 600125 - Image 2 ACT XACT Flywheel Prolite Acura RSX | TSX | Honda Civic 2002-2011 - 600125 - Image 3

If you’re looking to amp up your ride's responsiveness, the Advanced Clutch Prolite Flywheel 600125 is where it’s at. This bad boy is ACT’s lightest flywheel, specifically designed to give you the quickest throttle response and acceleration you’ve been craving. It’s a solid choice for anyone into road racing or rallying, though be warned—it does come with a bit of a trade-off in daily drivability.

What makes this flywheel stand out? For starters, it’s made from chromoly steel, which means you’re getting a tough, heat-treated forging that can handle a beating while keeping its cool. The one-piece construction is a game changer—no more worrying about warped inserts or loose ring gears. Plus, it’s CNC machined and dynamically balanced, so you can push those RPMs without any hiccups.

Now, let’s talk about the specs. This flywheel weighs in at just 7.8 lbs, which is a significant drop compared to stock options. That weight reduction translates into better acceleration and a snappier feel when you hit the gas. It’s got an SFI rating of 1.1 for safety and reliability, and with 119 teeth on the ring gear, you know it’s built to last. Just keep in mind that it doesn’t come with mounting hardware, so you’ll need to grab that separately.

Installation is straightforward, and if you need a little guidance, you can check out the install instructions here.

Features:

  • Improved engine response and acceleration—just be ready for a bit of gear rattle.
  • Induction-hardened ring gears mean you’re set for the long haul.
  • One-piece design cuts down on failure points and boosts heat transfer efficiency.
  • Perfectly suited for race use.
  • Forged and balanced for smooth operation at high RPMs.

Fitment:

  • Acura RSX (2002-2006)
  • Acura TSX (2004-2008)
  • Honda Civic (2002-2011)

So, if you’re ready to take your car to the next level, the ACT Prolite Flywheel 600125 is a no-brainer. It’s all about that enhanced performance without the fluff—just pure, unadulterated power.

Other Part Numbers:
ACT #act600125

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2002-2006
 Acura RSX
2004-2008
 Acura TSX
2002-2011
 Honda Civic

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ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

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.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

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:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

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.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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