They fit, they look nicer than factory, They have a strong heavy casting, cheaper than aftermarket, easy to replace if something should happen to one, they're cheap, oh, and they look sweet.
I think Vrabel has the 08 style centers but the older style will work too but you have to trim the little round tabs off of the inside of the cap.
That looks nice (thanks for the pic too). What size tire are you running on yours?