Header Paint
I cleaned the factory black off a new set of headmens and painted them with VHT silver header paint. It started rusting through in less than a year.
Previously I took a rusty set of headers and cleaned the rust off with muriatic acid from the hardware store and painted with POR-20 silver header paint. This lasted almost 3 years before it started to rust through and a touch up would last another year. I highly recomend the POR-20.