Are the primaries on all aftermarket headers pretty much the same?
Exactly what it says. I'm contemplating adding a custom 2.5" collector to my DC 4-2-1. If the primaries are the same as say a JUN header and the only difference is the collector size, why not just have a 2.5" collector welded on your 4-2-1? TIA.
Exactly what it says. I'm contemplating adding a custom 2.5" collector to my DC 4-2-1. If the primaries are the same as say a JUN header and the only difference is the collector size, why not just have a 2.5" collector welded on your 4-2-1? TIA.
Austin
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