@panteradoug posted:Not that it matters but I have found that coating regular mild steel with a ceramic coating works better then stainless cosmetic grades.
Stainless steel will blue with heat and eventually split in the bends. It does not expand and contract well and work hardens quickly.
Ceramic coating internally and externally on mild steel is a superior way to go.
Totally agree with Doug on these points. I made the mistake of putting stainless headers on my Mustang. They have not stayed nice and shiny looking. The ceramic-coated headers on my Pantera look much better after more years and miles of use.
Another MAJOR downside of stainless in an exhaust system is that it holds heat! The stainless headers on my Mustang will be too hot to touch for at least 45-60 minutes after shut down. On the Pantera I can stick my hands into the engine compartment 20 minutes after shut down without fear of burning myself on the headers.