Quote:
Originally Posted by why?
vibrations are absolutely meaningless in a non forced fed 2 liter vehicle. Even subaru states the engines are internally balanced, so you don't have to worry about it unless you add a turbo or supercharger. This is not an old school big block v8.
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Yes on FI it will matter more. And bone stock the car should come from factory perfectly fine, although they still put a dampener on for a reason.
However even NA after tossing on intake, bpb, full headerback, a tune, engine mounts, trans mounts, diff inserts/bushing, Fd swap, accessory pulleys, CF driveshaft, changing the cars factory weight distribution/reduction. All these would have effects on vibration that wasn’t originally intended/calculated from factory.
Not saying to the point of being detrimental to the engine. But possibly enough that adding a better dampener with a wider frequency of dampening could be beneficial.