i have a full stainless system, got it done at a new powerflow that opened, only went there cos the week that i went they had the powerflow head office instructor there and he was gonna be doing it for me, he did the neatest welds and its all straight, got a 2 1/4" straight through system, and my manifold is a stainless tubular 1 so i have 100% stainless system
but its not that loud actually, as its turbo so its quieter than a NA car...
oh i have a carbon fiber backbox, with a stainless steel 4" slash cut tip, box is really light, im pleased with it ne way