jdm vs usdm header

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Oct 20, 2004 | 05:34 PM

acintegragsr

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From: baltimore, md, usa

jdm vs usdm header

is there a different affect if i had usdm header instead of a jdm type r header is the jdm more effective or is the usdm the same

Oct 20, 2004 | 05:42 PM

dFreezy

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From: Boston, MA

Re: jdm vs usdm header (acintegragsr)

if you're referring to the itr's, the jdm version has a larger collector (2.5"), so it flows better, thus being capable of yielding more power.

Oct 20, 2004 | 05:48 PM

acintegragsr

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From: baltimore, md, usa

Re: jdm vs usdm header (dFreezy)

so what is the size of the collector on a usdm version

Oct 20, 2004 | 05:50 PM

dFreezy

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From: Boston, MA

Re: jdm vs usdm header (acintegragsr)

if i recall correctly, its 2.0"

Oct 20, 2004 | 06:32 PM

acintegragsr

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From: baltimore, md, usa

Re: jdm vs usdm header (dFreezy)

is the collector the bottom of the header where all your piping starts such as downpipe and cat an so forth

Oct 20, 2004 | 06:51 PM

xprohx

I think too much

Joined: Sep 2003

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From: NW

Re: jdm vs usdm header (acintegragsr)

The difference is the collector size. Your collector starts from where your cat bolts on to.

Oct 20, 2004 | 07:26 PM

tallblondkid

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From: Venice, CA

Re: jdm vs usdm header (xprohx)

are both usdm and jdm 4-1, i know jdm is

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Oct 20, 2004 | 07:35 PM

dFreezy

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From: Boston, MA

Re: jdm vs usdm header (tallblondkid)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tallblondkid »</TD></TR><TR><TD CLASS="quote">are both usdm and jdm 4-1, i know jdm is</TD></TR></TABLE>
no, the usdm itr header is 4-2-1

Oct 25, 2004 | 04:23 PM

Honda_RN

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Joined: Jun 2003

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From: ca, USA

Re: jdm vs usdm header (dFreezy)

hey would the 4-1 ITR JDM header fit a GSR?? also would it be good for JRSC applications?

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