I see that you are here in NC I took my TTI's to a place near Hickory, called Calico Coatings. They did an excellent job, and I am very pleased so far. It was an hours drive for me, will probably be more for you. They do a lot of work for all the NASCAR teams.About 3 years ago, it cost $225 to do ceramic outside, with the black thermal barrier inside. I will use them again.
http://www.calicocoatings.com/index.html