Stainless is the best material. Make sure the mounting bolts have extra big holes,as heat from turbo's makes for a lot of expansion. Too small a bolt hole and the fastener will get sheared off.Where would the turbo mount? Under hood,or down below?
Turbo would be underhood, most likely where the stock battery goes. This will be headers only, no cross over piping. But headers are the biggest issue and most difficult to make so I want to fill that void for us. I was thinking stainless and knew about the enlarged bolt holes. That will all be incorporated to the headers.