Ok gents... I've deployed my resources and I got some CAD engineering drawings. This is based off an Eisenmann exhaust photo of the underside of the F10 550i so some distortion from the image may vary the final dimensions, but here it is in a virtual set up.
The hangers were for a M5 so the diffuser will be changed out and I'm sure there is a small amount of variance in the outlet width too. I may adjust the hangers and make them work.
I know a muffler shop can do this, but I am totally a control freak and I don't want to hack the piping and not be able to go back to stock easily and cleanly, so I'm going to buy a MIG welder and do this myself with off shelf "U-J" mandrel bent sections, cut them and weld them.
Anyone have dimensions on the M5 diffuser outlet? I need width of the outlet and the space in between them.
