Power adders, cams and higher RPM change how a Subaru FA24 or FB-series crankshaft vibrates, and the stock elastomer damper was only tuned for the engine as delivered. This Fluidampr viscous damper controls torsional vibration across the entire RPM range, so it keeps protecting the crank however the build evolves.

Fluidampr 571111 Harmonic Balancer Features:

• Fits select Subaru Ascent, BRZ, Crosstrek, Forester, Impreza, Legacy, Outback, WRX and XV, plus the Toyota GR86, with FA24, FB20 or FB25 engines
• Includes the Fluidampr 300023 adapter hub kit with o-ring and OE crank bolt
• 5.875 in. outside diameter, 1.620 in. depth
• 6-groove serpentine pulley
• Engraved timing mark
• Internally balanced
• Black zinc finish
• 5.8 lbs total weight, 3.8 lbs rotating weight
• Viscous silicone design controls torsional vibration across the entire RPM range
• Helps reduce wear on critical engine parts and the risk of crankshaft failure
• Can free up torque and horsepower lost to crankshaft vibration
• Precision CNC-machined and balanced components
• No maintenance required
• SFI 18.1 certified