thats a nice lookin bike, and those appear to be Short TORS you have on there, not factory. Nice sounding little pipe, they are marginally more open then the OEM pipes, factory Pilot (should be 42's) with the pods and TORS should be ok but you will likley require to step up to at least 148 mains+ to bad you don't know whats in there, but i suspect with the issue you are having if its jet related you have 120's or so in there now. I don't see any major bluing on your pipes likley becasue you are not running 75mph very often. I would have them step up on the mains, or at the very least find out what you have in there.
