How sure are you that they are chrome? I could be wrong or maybe someone added the chrome version, but I'm pretty sure all stock CS wheels are actually coated polished aluminum. Depending on the damage and if you feel up to trying it, you may be able to clean them up a bit on your own: I nicked the lip on one of mine last summer so I hit it with a few different very fine grit sandpapers, polished it up, and then touched it up with some clear. It's not perfect but you'd never know if I didn't tell you.