- Flywheel Weight - 11.8 lbs
- Flywheel Tooth Count - 124
- Feel - You'll experience a huge improvement in engine response and acceleration, along with mild to moderate gear rattle.
- Recommended Use - It's highly recommended for race use.
- ACT Difference - It's forged, CNC machined, and dynamically computer - balanced for smooth and reliable high - RPM performance.
What's Included:
- Prolite Flywheel
- Pilot Bearing


Using your ACT Prolite Flywheel is easy. First, make sure your vehicle is a 2004 - 2021 Subaru STI or a 2007 - 2009 Legacy GT Spec B with a 240mm, 6 - speed application. Install the flywheel and the included pilot bearing following the standard installation procedures. Remember, this flywheel is mainly for race use. When you're on the road, you might notice mild to moderate gear rattle, but that's normal due to its high - performance design. For maintenance, since it's serviceable, you can resurface it when needed without having to buy additional parts. Check it regularly for any signs of wear and tear, especially after intense race sessions. Keep it clean and dry to ensure long - lasting performance.