I have put these on my previous Xs. I now have the same brake and gas pedals on the M but don't like the way they look with the M dead pedal. I liked it better when all three matched.
I never took off the original dead pedal, just drilled the aluminum one on top of the existing one. Not sure if you can do the same with the M pedal.
I was too lazy to search for my own pic
http://www.xoutpost.com/bmw-sav-foru...um-pedals.html