Stainless steel holds the heat for a very long time, ceramic/jet hot coatings are the way to go. Ive used both & the ceramic coated exhaust will disapate heat 5 times faster than stainless. I can actually touch my headers after cooling for 1 to 2 minutes, the stainless hookers would stay hot for 4 to 5 times that of the coated. Underhood temps are greatly reduced. Finish Line Coatings in Milwaukie Oregon coated both my headers for $100, huge difference! Summit also sells their own house brand block huggers that are ceramic coated for $279.00