I just ordered a set from Circle Bmw in Jersey. The set of 4 ran me $99.20 plus $10.00 to ship.

Just make sure you order the correct part numbers. Like someone mentioned before, their are a few different part numbers depending upon you wheel size and if you have running boards.

I don't have the correct tools for the installation unless I take the wheels off. But I'll call my BMW advisor and see how much they will charge for the installation.