not sure it'll be around next spring, but i plan to be in SD for a national autox event around that time. could probably throw it into a friend's trailer and cart it down then.
i never installed it on my coupe, it was on my 07 'vert. had the resonators welded in because there was unbearable drone at highway speeds. once installed, the drone disappeared. overall sound became more refined (less rasp), but decreased by only a few dB's - still much louder than stock @ WOT, the kind of sound i was hoping for when i bought it without the resonators.