If you want mild steel headers with a ceramic coating that we all KNOW fit well then there are still various cheap options. Pacesetters with Armorcoat are like $400 or so... MAC Ceramics aren't too bad etc... The best deal were the SLPs because they were stainless and they were something like $700 ceramic/stainless but they are long OOP.
Pace Setter 72C3229: Armor Coat Car Long-Tube Headers 1996-2004 Mustang Cobra 4.6L DOHC | JEGS
Pace Setter 72C3229: Armor Coat Car Long-Tube Headers 1996-2004 Mustang Cobra 4.6L DOHC | JEGS