After much, much reading of posts, and knowing there are those ready to jump all over my neophite question, just what is the difference between the upgrade called a Catback and the upgrading of an exhaust? Where does one start and end vs. the other?
Catback = everything from the cat(alytic converter), to the back of the car. Unfortunately our catbacks don't include the flexpipe piece, so they aren't a "true" catback. Fortunately the GS downpipe now replaces the flexpipe as well!
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