Mugen 4-1 Header

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Jan 18, 2014 | 12:11 AM

9tailsfox

Thread Starter

Honda-Tech Member

Joined: Nov 2009

Posts: 191

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Mugen 4-1 Header

hello, another silly question from me again. I'm using ITR 4-1 2.5" on my b16b. will it gain if I using Mugen 4-1 2.5"? Thanks

Jan 18, 2014 | 03:33 AM

HondaPartsHero

Technical Hero

Joined: May 2002

Posts: 9,875

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From: Charlotte, NC, 28227

Re: Mugen 4-1 Header

Too many factors and people will only be guessing. You can search around for dyno threads and see general idea but either way without tuning you'll never optimize any upgrade.

Jan 18, 2014 | 06:47 AM

Deetz

Crazy Honda Guy

Joined: Sep 2003

Posts: 8,025

Likes: 19

From: Calgary, AB, Canada

Re: Mugen 4-1 Header

Those designs are so similar, i don't know why you would bother. Performance would be pretty much the same between the two. The oem manifold has the advantage of an heat shield