ACT ProLite Flywheel 2006-2021 WRX / 2005-2012 Legacy GT / Spec B / 2006-2008 Forester XT

The ACT XACT Prolite Flywheel is a lightweight, low-inertia performance flywheel designed for race-focused applications. Made from high-strength chromoly steel, it delivers exceptional throttle response and acceleration while maintaining rigidity and heat tolerance. The one-piece design ensures uniform heat transfer from the clutch disc, eliminating the risk of warped inserts or loose ring gears. Fully serviceable, this flywheel can be resurfaced without purchasing additional parts.

Specifications & Features:

• Material: Chromoly Steel
• Friction Surface Diameter: 9 in / 228 mm
• Flywheel Type: Prolite
• Tooth Count: 124
• Weight: 9.4 lbs
• SFI Rating: 1.1
• Feel: Dramatically improved engine response and acceleration, mild to moderate gear rattle
• Life: Heat-treated forging for strength and durability; induction-hardened ring gear for long life
• Quality: Forged, CNC-machined, dynamically balanced for high RPM reliability
• Recommended Use: Race-focused applications, including road and rally racing
• ACT Difference: Engineered for maximum performance, low inertia, and smooth operation under extreme conditions

Notes:

• ProLite Flywheels are recommended for race applications and often can trigger a Check Engine Light. If using for Street, look into the StreetLite Flywheel. This ProLite Flywheel is 9.4 LBS
• 2005-2009 Legacy GT owners utilizing a WRX Clutch will need to use this flywheel fitment