The aftermarket motor mounts are meant to increase firmness over the stock motor mounts. This is done for performance reasons, definitely not for comfort.
The stock motor mounts are softer in order to absorb vibration, and prevent that from transferring to the occupants.
Is your engine possibly running poorly causing unusual vibration? I think the GT runs fairly smooth aided by the balance shafts. I had a GM 2.5L 4 that was a rattle can by comparison.
__________________
 Black 03 PT Turbo & Black 94 Impala SS
|