Quote:
Originally Posted by Jordan Silveira
I'd actually love to know and see how the Ace Header 350 (seeing how it's often crowned the king of header choices) compares to the Fujitsubo SuperEX EL Catted Exhaust Manifold (comes with the OP included too).
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I would expect less gains if nothing else strictly because it still has a cat.
That said I have seen no dyno graphs from this header.