Well, i offically have a complete front set of M5/M6 Rotors, Calipers, and Pads for sale. I purchased these about a year ago and never got around to installing it. I gave it a shot this weekend to find out there is no way in hell they would "bolt up with minor modification." The bolt holes dont even line up for the Calipers on the Spindle.
So i tried test fitting them on my cousins 530 and everything lines up just right, but he doesnt need brakes becuase his car is about 6 months old.
Point is... if anyone local wants a set of 15" monster brakes for the 5/6 series I have a set. Again this was never installed or used since i purchased them last year. The pads are pretty much new. The Calipers were Red when i purchased them but i had them resprayed a flat black color. I will try to get some pics up.
Also, this will not work on Xi Models, will only work on the rear wheel Drive.
This is the cheapest route for a 5/6 series to go BBK up front. And its all OEM.
Price: $500 Firm.