Exhausts are one area that spray bombs seem to work pretty well
Must be the heat that bakes it on so to speak....
Sand it down,. don't go nuts and paint it. Enjoy.......
One thing I find with exhausts, if you get mud all over them and don't wash it off, it eats at the paint so be sure to keep it cleaned off.
Like the guys said, most BarBQ and Hi Heat paints lay down just fine for exhausts and there easy to do over.....
I also soak my can of paint in hot water for a bit before I spray it, it seems to help it flow and adhere, or maybe I'm crazy..... I am crazy but thats another post altogether
All our government does is distract us while they steal from us, misspend our tax $ and ruin our country