Have you installed your own kit exhaust?

pypes and many others do use 409 stainless. 409 does take on a rusty appearance. im not arguing 321. maybe it is used for headers, but this guy is talking exhaust systems. only reason i wasnt positive, i havent played with stainless in a little while. i am a welder by trade not a weekend warrior, at the same time not an exhaust specialist but as i said i havent really been playing with stainless in a while so for a second i gave you the benefit of the doubt, but a simple google search will set your facts straight. you really wont get much if any spatter on an exhaust if you are any kind of good welder that can push wire. yeah no doubt tig is pretty. its also very slow. its not going to help the flow of an exhaust, and it isnt going to do anything for a car that a good migged sytem wont do.