Hey man i was reading your post about the cw exhaust and motowheels reflash. I did the same and have the same prob, popping and burbling on deceleration. I also thought the reflash was supposed to solve that as i also removed the o2 sensors and the exhaust valve with the flash. Motowheels wasn't much help they said since the exhaust is a shorty it will always pop, but I'm hearing different from ppl with the bazazz. Did they reflash you again? How did it turn out?