Using only three parts–a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two–these SFI-approved Fluidamprs can control all crankshaft vibration, not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.
Fits all EJ Subaru motor cars, including 2002-2014 Impreza, WRX/STI, Legacy/Outback, and Forester.