This is the second time I've tried to get MAC Headers installed. The first time, the passenger side header (which was missing the EGR hookup) would not clear a cross member at the collector of the header-right before it goes into the y-pipe. After notching the flange, the header and y-pipe would not align with the driver side header. MAC sent me another passenger side header. I tried to get them installed today, and the flange on the collector from the passenger side header won't clear a cross member. (same as before) I called MAC and they say the header should fit on coupes and convertibles (my first theory). I am sending them some pics. Did anyone have any problems like this-did you have to notch anything, or such? Thanks. Ryan