I've had the Jet-hot coating on two sets of headers for a few years with no issues. I've had the pace setter coats urn to hell in less then a year.
So I would get uncoated and send directly to jet-hot. That way you get their lifetime garuntee. Or, see on their websit if you can order them directly through them.
www.jet-hot.com.
oh, and the sterling 1300 finish is the best bang for your buck there.