Originally Posted by SvviftSVT
Poly mounts are engine mounts with polyurethane as the dampening material instead of the softer, more forgiving rubber in the stock mounts.
Thus, the poly restrict the movement of the engine, harnessing it better to be transferred to the tires. A Solomon byproduct is increased vibrations due to the stiffness of the poly
Okay in simple terms, it gives more direct route of sorts from engine to tires?