:cool2: I have a TVM220 10 hp Tecumseh on an old RER murry and I want to put a pipe on the exhaust so the heat doesnt hit my side panels. I want to run the pipe so it will exit the back and not the side. does anybody know the size pipe I should use?:confused2: With a couple Ts I can have duel exhuast system so cold air wont get the the valves.