I think it would be better to see stock manifold with ecu tuned vs new header and retuned ecu. Or stock manifold with n1 cams and tuned ecu vs new header n1 cams and retuned ecu. It's a good way to do a more objective evaluation.
another option but i can bet that the header will cost $600+ . with less money i can do a custom one nd maybe another one in case i dont get it right the first time .
1992 SE-R 66K miles Original Ownerhttp://tinyurl.com/yf58tfr
2014 Mazda 6 6mt
2011 ix35 5mt
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