Hey guys and girls, Iv searched around a little and couldn't find what i was looking for so ya. Iv been debating whether to replace my stock cat back to finish off my exhaust. I already have a 42DD 3" catless downpipe, with a resonator delete. Would buying the rest of the 3" 42DD catback be any notice at all? In any aspect? Im guessing they would be minor gains if any. Id just like someone else input to help along my decision.