Here are some sources of 304 stainless bends, I have used a set of 304 headers for over 325 hrs but they are thick walled like 0.10" thick. http://store.racing-solutions.org/180deu.html http://www.classictube.com/products_exhaust.asp http://www.powerstrokes.com/parts.htm http://www.racepartsolutions.com/products.asp?cat=48 Ed