who sells 3" stainless exhaust?

I've built a stainless sytem for a motorcyle I once had. I used mandrel-bends.com, ordered what I needed, cut and tacked everything into place, and took it to a professional TIG welder to finish it out the full weld. I plan on doing the same thing with the Dart in a 3" system. Could be one way to go if you want stainless.