> On Feb 15, 2014, at 8:03 AM, J Stewart <fonman4277@COMCAST.NET> wrote:
> 
> does anyone know of an exhaust coating that doesn't burn off in 30 minutes?

I've tried a few of the rattle can coatings and they've always burned off quickly. Check your local ceramic coating shops. It may be less $$ than you think. My header was $135 to coat inside and out, with different coatings for each to handle trapping heat better. Check Powder Extreme Coatings on the www. 

Bob