My Boesch built center SS exhaust finally gave up the ghost - well the flex pipe did. I have a fabricator who says he can replace it (he will plasma cut off the old flex pipe and using a jig weld up a new one). I just need to know the flex pipe size - anyone have any ideas ? I got three years out of this one but since i am planning to sell my smart I don’t want to give someone a problem either. Anyone have any suggestions , I think the exhaust Matt built was pretty awesome the welds are rock solid it is just that the flex pipe let go behind the flange so just a bad design by the component manufacturer.