Ive deleted the suitcase in the rear and added a straight through 2.5" magnaflow muffler which has taken a good amount of drone/sound out from having nothing back there but it still has a terrible drone. The note below 3k is also very boomy and unrefined.
Wondering if anyone has experience with custom exhausts on these. Im looking at adding a 15" (18" wont fit) hotdog before the stock resonator. Im unsure if its worth replacing the stock res with something else.