Hey guys. I have an integra GS-R, but I bought a new cat/exhaust that is a direct bolt-on for an ITR. I was planning on going ITR specs from the header back. My engine is a stock GS-R with an intake. No internal mods to the engine. I planned on getting a DC 4-2-1 header for an ITR, but it is on backorder till god knows when. Does anyone have another suggestion that would be as good or better than a DC 4-2-1? I don't want to go much bigger than 2.25, as my cat is 2.25"

It has to bolt up with the stuff I already have.

 

I believe the Mugen 4-1 is offered in a 2.25in collector size.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by white rocket &raquo;</TD></TR><TR><TD CLASS="quote">I believe the Mugen 4-1 is offered in a 2.25in collector size.</TD></TR></TABLE>
and the Mugen 4-2-1 as well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by white rocket &raquo;</TD></TR><TR><TD CLASS="quote">I believe the Mugen 4-1 is offered in a 2.25in collector size.</TD></TR></TABLE>

I have this and I will be willing to sell it, if you want?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EG6-DC2 &raquo;</TD></TR><TR><TD CLASS="quote">

I have this and I will be willing to sell it, if you want?</TD></TR></TABLE>

I have a feeling anything Mugen is going to be out of my price range. PM me though if you want to offer it up.

 

Does the stock ITR header have a 2.5" collector? And is the USDM a 4-1 like the JDM ITR header?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beastman@ &raquo;</TD></TR><TR><TD CLASS="quote">Does the stock ITR header have a 2.5" collector? And is the USDM a 4-1 like the JDM ITR header?</TD></TR></TABLE>

USDM is 2.25
JDM is 2.5

USDM is not a 4-1 design, rather a 4-2-1 2 piece design. The JDM 4-1 is a one piece. Hope that helps.

 

Is the USDM ITR header any better than a stock GS-R header?

The GS-R is a 4-2-1 two-piece as well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beastman@ &raquo;</TD></TR><TR><TD CLASS="quote">Is the USDM ITR header any better than a stock GS-R header?

The GS-R is a 4-2-1 two-piece as well. </TD></TR></TABLE>

not really. if you really want to stay 2.25 then i suggest maybe a comptech header

 

all stock b-series headers are 2" at the collector

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beastman@ &raquo;</TD></TR><TR><TD CLASS="quote">Is the USDM ITR header any better than a stock GS-R header? </TD></TR></TABLE>
YES, flows better I'll try to find the document...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pennies_hatchie &raquo;</TD></TR><TR><TD CLASS="quote">not really. </TD></TR></TABLE>
Hope that was not aimed at the difference in GSR to ITR header.

 

Found it.

http://itrsport.com/images/tec...t.gif

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jewjew bean &raquo;</TD></TR><TR><TD CLASS="quote">all stock b-series headers are 2" at the collector</TD></TR></TABLE>

are

you

effn

kidding

me

Please stop posting mis-information...

 

Edelebrock Pro-flo 4-2-1 1 piece. Great emissions legal header. On my car for 4 years no issues.
http://www.edelbrock.com/sport...shtml

 

I wish they weren't discontinued...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rcar97 &raquo;</TD></TR><TR><TD CLASS="quote">Edelebrock Pro-flo 4-2-1 1 piece. Great emissions legal header. On my car for 4 years no issues.
http://www.edelbrock.com/sport...shtml</TD></TR></TABLE>

 

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

are

you

effn

kidding

me

Please stop posting mis-information...</TD></TR></TABLE>

http://www.team-integra.net/se...D=793