Fluidampr Harmonic Balancer - 5.375 in OD - Black Zinc - Internal Balance - Subaru EJ Series HS11M61 The factory motor mounts are

The factory motor mounts are designed to dampen engine vibration

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Fluidampr Harmonic Balancer - 5.375 in OD - Black Zinc - Internal Balance - Subaru EJ Series HS11M61 The factory motor mounts areSubaru. EJ series engines. Reduce risk of crankshaft failure. Reduce wear on critical engine parts. Unleash lost torque & horsepower. No maintenance required. Superior durability. SFI 18. 1 spec. Race proven for over 35 years. Made in USA. Fluidampr performance dampers made their way into winners circles at many motorsports events. From NASCAR champions to Drag Racing legends, Fluidampr is the #1 choice of top engine builders and drivers. Fluidampr