I'd be hesitant. The bulbs get
very hot and have been known to burn the surrounding plastic. I believe there's a few threads about it on e90post.
Edit:
I was curious since I couldn't remember the exact details and did the search for you
http://www.e90post.com/forums/showthread.php?t=30283
http://www.bimmerfest.com/forums/showthread.php?t=34980