Hey guys, I am looking to buy a set of style 214's for my 2007 X5. Does anyone have any places they recommend to buy from (online). I live in Calgary and from what I can tell there is not much of a market here to buy used ones (which I would do if possible). Anyways if people have used a certain website and got good servic etc. could you let me know.

Also is there a big difference in road noise when switching the the 20" (currently I have style 211 18's).