Wow, a very convincing argument from Chicane. (I love reading your posts, BTW - always informative).
Who dares to counter that? Not me.
I am just glad I scored my full stainless steel stepped headers made for my application (plain ole SBC) off ebay for $750 about two years ago!
Mr Chicane, what is your analysis of these? (1-3/4" stepped to 1-7/8" with 3.5" collector)
(sorry for the quick threadjack, but it's sorta related!)