@ WRK Thanks I really do understand that the preference is on the side of not trimming them down. There is no way they will fit in the current conformation as supplied. The exhaust would have to go through the landing gear. I spent a $100 a pop to have them custom bent to my parameters it took ten months to receive delivery and they are still little over an inch too long. They were supposed to bend them so the correct amount of tube would fit within the available geometry of the airplane. A 35% Dalton Extra 260 which has pretty much a standard spacial configuration seen in most IMAC 3D ships. My question is what is the downside if I trim them by an inch and an eight?