Check out this link to my favourite tractor page. The fellow in the picture has an exhaust stack done in what he refers to as a silver high temp powder coat. http://www.ytmag.com/cgi-bin/viewit.cgi?bd=oliver&th=151655
You may be able to email him if you click on his screen name, if you wish to contact him.

A day without laughter is a day wasted- Charlie Chaplin
When wrestling a grizzly bear, you have to keep at it until the bear gets tired, not when you get tired.
1948 Chevy 2-Ton