Tru,
I used stainless on my Cobra when I had it and they were great. They do get hot quickly though. I also have a stainless exhaust system on the 69 Cobra and it has stood up for many years. I used to clean the bottom of mine after every hard run. All kinds of dirt and rubber would be under there. Then I would rattle can any places that were chipped and it stayed pretty clean after the first time or so.
Ron
