Hey guys, just wondering whether I could get away with doin up a set of custom headers now, and then doin the exhaust (header back) next month or at least a couple of weeks? Also, what size piping do our aftermarket headers come with (for the ecotec)? I have heard that one of the most restrictive components of the ecotec engine is the exhaust manifold, and a set of headers will definitely show significant gains (atleast on the ecotec) - anyone able to comment on this?
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