Hey guys, long time lurker here, finally registered so I could pick your collective brains a bit. I've had a Silver '08 for about a year now (love it, much more refined than the BMW K1200S I replaced with it). I just added a full Yoshimura R77 carbon can system and PC3 USB. I used the map that DynoJet had on their website, since they had one specifically for the R77 full system. It runs great, sounds great, and the power has been increased VERY noticeably. My only question is this: When decelerating, I get quite a bit of popping and fairly frequent backfire, especially if decelerating from higher RPMs. If I got a custom tune at a Dyno shop, would this go away or be lessened, or should I just shut up and accept it as part of my new (louder) exhaust?? Do most of you guys get this popping and backfire too? Thanks!!