I have access to some 2" stainless tubing, food grade 304 or 316. What I'd like to do is to make a drag pipe using a generic baffle. What I am not sure about is whether or not stainless will blue under extreme heat, or if there is any special way I'll need to weld the mounting tabs on.
If it will work, I plan on polishing it to a brilliant sheen.
Finally, which end would be better to mount the baffle? If it works, great! Otherwise, I'll buy some exhaust tubing from the local muffler shop, and paint it black.