Just installed mine today, very happy with the results.
Just a few things I would like to point out for the install.
The removal of the sides grills is easier than I anticipated.
The paint on the new ones was still soft when I received them so careful on how you handle them, especially the edges.
I suggest you scrape the paint on the holding tabs, if not you will have to apply too much force to snap them back in and risk damaging the paint.
2011 E82 1M VO