Comar1979 has some on his 130i. Here are some pics I took of his car at the Welt 2.0 meet...
I remember him telling me he got his off of ebay for very cheap! ~60 euros vs 400 euros for the BMW Performance cf ones.
BMW WELT Meet 2.0
http://www.1addicts.com/forums/showthread.php?t=534011