As far as I know, there were only two manufacturers of 84-85 headers of this design, Kenne Bell and Hooker. What little information there is leads me to believe these are from Hooker. The Kenne Bell headers apparently used V band connections. Two of the pipes in the picture are the 2 1/2" downpipe that is needed to work with them. The pipes are made from mild steel and I think they orginally came painted. Someone must have had these Jet Hot coated.