So, what I have found so far...

- Eastwood product seems to be the best bet as I found multiple instances where guys said it holds up decent.
- Blast the surface
- Wipe down with surface prep or similar
- Apply paint
- Start engine, first sign of smell or smoke, shut it down. Do this heat cycling over and over until there is no more smell/smoke. This helps you not burn the paint off and "bakes" it on.

An oven is out of the question, these TTI headers are huge. Unless I can find a big oven that I can rent or something, probably going to use engine heat to cure.

I'm still skeptical, we'll see. The Eastwood stuff says 1000 degrees, EGTs are higher than that.