No Reply...Just a DLE30 exhaust thing. I had made a adapter of sorts to use my Bisson pitts muffler on my DLE30. Got the cowl cut only to find I would need to cut a chunk out of side of cowl for clearance. Bummer. Yesterday I moved some engine parts in parts area...and found another Pitts exhaust. With just a little mod(enlarging bolt slots) I installed it. It looks like now I have one that may work without further cutting. Will see later today! Capt,n "Added" ...I will add a brace to far end of chamber so vibes do not wreck things.