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4-1 vs 4-2-1 headers: pros and cons?

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Old Jul 14, 2004 | 12:42 AM
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SiRP's Avatar
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Default 4-1 vs 4-2-1 headers: pros and cons?

Tried a search on this topic. To my surprise, nada. And i thought this would be an FAQ.
Any knowhow would help. Thanks.
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Old Jul 14, 2004 | 12:45 AM
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JDM Like Whoa's Avatar
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From: Dodging Cones
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I believe with 4-1 you get more low end tq and vise versa. Pretty sure. Its kinda late and im tired.
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Old Jul 14, 2004 | 03:45 PM
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Default Re: (ImportRacr05)

Thanks for making me more confused now. Yeah, you should get some sleep.
Some guy will say 4-1s are better for drag applications because they give you better top end, while 4-2-1s are better for the street because of the low/mid range grunt. Then you ask the next guy and he says the exact opposite! So which is it? TECH!!!!
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Old Jul 14, 2004 | 05:26 PM
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Default Re: (SiRP)

4-1 high end 4-2-1 midrange
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Old Jul 14, 2004 | 08:48 PM
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Default Re: (ShowTymers619)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ShowTymers619 &raquo;</TD></TR><TR><TD CLASS="quote">4-1 high end 4-2-1 midrange</TD></TR></TABLE>

I have a swapped motor that sits kinda low. (b16 w/avid mounts in 88 dx hatch).
I have 4-1 headers. I occasionally hit them on speed bumps and things like that.
If i had 4-2-1 the oil pan would get all the damage.
I'd rather bang the header than the oil pan.
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Old Jul 15, 2004 | 12:30 AM
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Default Re: (eda6 hb)

Glad the issue's finally clear. Thanks. Plan on getting 4-2-1s soon since i have no intention of drag racing my daily driver. Isn't lowered either, so i guess i won't have any scrape issues. Guy who's gonna do the custom exhaust says he's checking out a slightly used 5-Zigen that's going for 240. Not bad eh?
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Old Jul 15, 2004 | 05:21 AM
  #7  
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From: Charleston, SC
Default Re: (SiRP)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eda6 hb &raquo;</TD></TR><TR><TD CLASS="quote">

I have a swapped motor that sits kinda low. (b16 w/avid mounts in 88 dx hatch).
I have 4-1 headers. I occasionally hit them on speed bumps and things like that.
If i had 4-2-1 the oil pan would get all the damage.
I'd rather bang the header than the oil pan.
</TD></TR></TABLE>

it is A header. since when does a b16 have two exhaust manifolds?
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