The wheels got Plasti Dipped.
So, I decided that I got bored by all the silver on my N/A wheels, and went ahead and plasti dipped them.
I used anthracite gray metallic from dipyourcar.com, and also their custom aerosol can nozzles for better more even coverage.
Here's the results I ended up with, and I have to say I love it. Thinking of doing the windshield surround and mirrors as well.
BTW, the pictures don't do it justice, as the actual plastidip is metallic and has flakes in it just like paint. It looks fantastic in person with the metallic particles shining in the sun.