The ACT XACT Flywheel Streetlite is a one-piece forged flywheel built for street and race duty, delivering noticeably improved engine response and acceleration with OE-to-mild gear rattle. The forging is heat-treated for strength and toughness, and the ring gear is induction-hardened for maximum service life. One-piece construction eliminates the failure points found in multi-piece flywheels and provides uniform, efficient heat transfer away from the clutch disc, so there are no warped inserts or loose ring gears to deal with. Each flywheel is forged, CNC-machined, and dynamically computer-balanced for smooth, reliable operation at high RPM.
Warranty
Installation Instructions
Backed by ACT's one-year "Excellence in Performance" warranty.
Specifications
- Product Type: XACT Flywheel Streetlite
- Construction: One-piece forged, CNC-machined, dynamically computer-balanced
- Ring Gear: Induction-hardened for extended service life
- Recommended Use: Street and race
- Gear Rattle: OE to mild
- Part Number: 600550
Vehicle Applications
- 2015 Mitsubishi Lancer Evolution Final Edition
- 2008 Mitsubishi Lancer Evolution GSR
- 2010 Mitsubishi Lancer Evolution GSR
- 2011 Mitsubishi Lancer Evolution GSR
- 2012 Mitsubishi Lancer Evolution GSR
- 2013 Mitsubishi Lancer Evolution GSR
- 2014 Mitsubishi Lancer Evolution GSR
- 2015 Mitsubishi Lancer Evolution GSR
Frequently Asked Questions
What does the ACT 600550 flywheel fit?
The 600550 fits the 2015 Mitsubishi Lancer Evolution Final Edition and the 2008, 2010-2015 Evolution GSR.
How is the Streetlite different from the Prolite version of this flywheel (600555)?
The Streetlite (600550) is tuned for street and race use with OE-to-mild gear rattle, while the Prolite (600555) is a lighter, race-only version with mild-to-moderate gear rattle. Choose Streetlite for a street-driven Evo and Prolite for a dedicated track car.
Does the 600550 flywheel include a pressure plate and disc?
No. The 600550 is a flywheel only. ACT recommends pairing it with an ACT pressure plate and disc for a complete, matched clutch system.
What warranty comes with the ACT 600550?
ACT backs the 600550 flywheel with a one-year warranty.
