It says on the website www.exewheels.com that the center cap is easily interchangable with the OEM BMW center cap. If you visit the site it talks about the wheels being particular to the new design of BMWs and made more for BMW, MB, and Lexus. Not that its actually a reason to me wanting them, its the difference between them and soo many of the other must haves.

Question- 20 x 10.5 = $519 each
20 x 9 = $472 each

My current setup is 20 x 9.5 in the front. Would going down .5 inch in the front make a difference? Would my stock tires still fit? They have plenty of tread left and wouldn't wanna swap them if not needed. If I do though, its ok, as it would only be the two fronts that would need changing.