Which should I purchase?
I would think the jet coated also. I believe they have better heat handling characteristics. The stainless are nicer looking but will blue over time, however they won't ever rust.
Jet Hot coating is the schiznit. I had ceramic coated headers on my 56 F1 and it ran great. A friend of mine talked me into Jet Hot coated headers and I picked up a full tenth consitent!!


