Best exhaust manifolds???

604 said
Well some time next year it will hopefully have a new 408 "273 LOL" So I want to get the highest flow possible with manifolds. I aready have an TTI system on the way for the factory manifolds, so I will just have to replace the head pipes when I do the swap.

Thanks
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Well.....my opinion, FWIW, is that you'll not feel the difference UNLESS you run headers. I may well be wrong. Surely, you'll have a quality exhaust system, though, because Lord knows TTI sells quality stuff.