I am talking with Rainey about getting him to do a Revo for me. After talking with a friend who is a mechanic he said I need to ask Rainey about the SET valve. I am running the G-Man Bully and he was concerned that if the SET was removed in this job that the bike might have backfire issues and such. So I am trying to explain to Rainey that I need the SET to remain in the pipe system when he does the mod. Can anyone tell me if I am on the right track and if that valve will stay there in his normail pipe mod.