That was the easiest thing i ever did on the supra! If they are plastic caps liek I thin so cause mine were, just bust out some silver pray paint, I got mine from canadian tire, make sure it's a but better htan model paint so it doesn't flake look for the can with the outdoor label, and spray some light coats. It really makes the wheels look sweet. Mine had minor curb rash but the centre caps were good, so they looked good overall you know?
eric