Well, I'm sure you're right (that an exhaust shop could make this piece) but a band-saw (or cut-off wheel) and a welder is probably all tht you'd need to "manufacture" this item. Build a jig for the original, and you could turn them out on a wholesale basis. I can't imagine that you have the capability of manufaacturing other parts for sale and don'have access to a welder and a band-saw.