Coating Tubual Exhaust Headers TR250/TR6

[Don Malling <dmallin@attglobal.net>]

I understand tubular headers should be Jet Hot coated or Ceramic coated 
for reasons of heat and sound. Is that correct? If so, why would I buy 
stainless rather than mild steel? Is Jet Hot and Ceramic the same thing? 
Will I have to wrap them regardless of material (Stainless vs Mild) or 
coating (Jet Hot vs Ceramic)?

Don Malling