The high heat stuff is made for headers so I think it would stand up to the heat. I have been toying with the idea of doing this to my exhaust as well.
I have used the 1200ºF stuff on my headlight ring with very nice results. I sanded the chrome to get it rough, cleaned it, baked it, let it cool, sprayed primer, then sprayed the black, then baked it in a toaster oven at the temps on the directions.
The big thing that keeps me from doing the 1200º on my exhaust is I do not have an oven big enough to bake them. Now you could also cure them using the method VHT uses (similar product) . You start the bike for so long, let it sit for so long and do it again and again at their recommended times. I just worry that the end of the exhaust might not cure the same as the front, when comparing it to curing in an oven.
There are videos on their website for most of their products. Here is the high heat one
http://www.duplicolor.com/training/highheat_training.htmlThey also have a customer care line you can call. I called it when I was unclear of the process of spraying and baking and they answered all my questions and gave me reasons why you had to do it that way. I was really impressed.
For me it comes down to the the "cheap do it yourself" side of me wants to do it this way. Then the "do it the right way" side of me wants to get ceramic coating.
