Header, Intake, & Exhaust Custom Exhaust? New Headers? Need Opinions on Intakes? Discuss making your ride breathe better here.

4-1 or 4-2-1 header?

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Mar 28, 2005 | 12:02 AM

#11

sacicons

HCF Member

Joined: Jun 2004

Posts: 7,699

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RE: 4-1 or 4-2-1 header?

most stock manifolds are more in a 4-2-1 layout.

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0r, 41, 421, civic, clearance, d16z6, ground, header

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