Originally Posted by dlai
It's odd that you have this issue. I found that usually when it's bigger diameter, they end up being tappered down when it gets closer to the flange. Does this happen to your Akrapovic?
Unfortunately that is not the case here. In their defense, I doubt Akrapovic ever intended their midpipe to be used with anything but their axle back exhaust, whose inlet is quite a bit larger than that used by BMW or many aftermarket offerings. Oh well, I'm having Burns Stainless fabricate an adapter.