Im having the same issue as another did on here but wasn't quite sure of the solution or how much it might cost. When I shift or decelerate, my exhaust pops a lot and its getting worse. I don't even want to ride it lately because it bugs me. There was a cure for this on another thread. Any help would be appreciated and any idea of what it might cost. Thanks all! Oops...I forgot to mention its a 2008 Heritage Softail.