I don't know how difficult it would be, but has anyone thought about manufacturing a Stainless steel sleeve to go over the headers like an outer shield. It could be designed to have an open section at the back to enable installation. It wouldn't get as hot as the pipe and so would retain its luster...
Just a thought.
Disclaimer: I haven't given it much thought so don't lampoon me if I have missed some obvious pitfall. Not being a metal worker I'm sure i have made a major phopah.
that's exactly how cruiser pipes work. Nice chromed sleever over the actual pipe that handles exhaust gasses. Would probably work if you had the time, patience, and skill to do it. I actually like the discoloration, but that's me.