ceramic coated headers?
It will allow more heat to stay in pipes - but will not keep the engine cooler.
They will outlast painted headers - but they still need to be cared for.
Opinions (my own)
They do not make more power - this idea comes from less heat being radiated under the hood diluting the intake air mass. How much less?, not enough.
Less radiated heat - does not mean they dont get "take your skin off right now" hot, they will still do this so dont touch.
Engine heat is a combination of air flow, coolant efficiency, and combustion process - this determines exhaust heat and therefore header temps, not the other way around.
That being said, and not to be overly critical, I do have and absolutely love my ceramic headers/sidepipes, but there function is not improved over others they are just easier to look at and take care of.






