... but, if it's a TORS exhaust, like I assumed, you shouldn't have to "upgrade" your exhaust. Simply go to your dealer and have them drop in the correct factory tune for now. I don't know about today, but 3-4 years ago there were two tunes they (dealerships) had for non-Touring models with the TORS setup. If you currently have one of those tunes and your motor and filters are otherwise stock, try the other tune, if it is still available. Otherwise, go the TuneBoy, or even the Dobeck route if you don't mind spending the coin to correct a problem that shouldn't exist to start with or the TuneECU way which costs only the price of a computer cable.
As for hooking up with fellow R3 Captains, I'd recommend that you reach out to Boog. He lives only 10-15 or so miles from you down in Dumfries and he's not only a very practiced, proficient rider, he's also very good people! He knows a bunch of the other R3 riders in your region, too.