The guy I just purchased my '07 from who works for a Triumph dealer indicated that when the bike was totally stock, there was some popping on decleration. After the off-road shorty silencers were added with the Air Eliminator kit, it stopped all of the popping on deceleration. I asked them about how the dealer rejetted, and he indicated that they had no need to do so, that the bike ran great with stock jets - which I can attest to the fact that it does. I was very impressed when riding it home to see how quickly it accelerated to over 100 mph, and has great pull off the line.
