Why do some companies sell a lightweight alloy hub for the Subaru WRX to replace the factory harmonic balancer?
These hubs do not function as a vibration absorption device and lead to premature crankshaft failure. If a harmonic balancer was not required, Subaru engineers would have not put one there in the first place. Our balancers do a superb job of absorbing torsional vibration and satisfy all ANDRA requirements.
