Quote:
Originally Posted by ROD1
Why are ARH headers primaries contoured rather than straight like others? "By making them the same length, it guarantees that each cylinder's exhaust gases arrive in the collector spaced out equally so there is no back pressure generated by the cylinders sharing the collector." Also somewhere I read that the more gradual the merge in the collector, the less backpressure as well but dont quote that.
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I have read that too.
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Formerly owner of:
2012 2SS/RS Build Thread - Totaled by red light runner
2010 LT/RS Build Thread - Traded in for 2012 2SS
2007 Acura TSX
1992 Oldsmobile Achieva V6
1992 Mercury Sable
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