4-into-1 or 4-2-1 header

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May 24, 2007 | 09:39 PM

#11

phsballer123

HCF Member

Joined: Apr 2007

Posts: 251

From:

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

i am running 4-2-1 5zigen header on my 00 si and its done me well. i did a lot of research on them and for that motor size 4-2-1 header seemed to do best performance on the streets.

May 29, 2007 | 07:04 AM

#12

silvercivicex98

Joined: Aug 2005

Posts: 26

From:

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

i went with the 4-2-1, love the flow and response, go DC 4-2-1 brushed

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