I have a pretty good set of OEM C5 Z06 wheels I'm going to sell. I'm not sure if they're from my '03 or the set I bought from someone which was on a '04. I've swapped them back and forth so often I don't know which is which. If interested give me an email address and I'll send you a good picture of each. I have the center caps but no lug nuts. There is an old set of Michelin PS2s on them right now.