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DC JDM 4-1 header vs. JDM ITR 4-1

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Old Nov 30, 2004 | 10:39 PM
  #1  
N1NjA TuRtLE's Avatar
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Default DC JDM 4-1 header vs. JDM ITR 4-1

Which header makes more power on a B18C-5/B18-C?
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Old Dec 1, 2004 | 06:02 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (4DoorGeezer)

Not sure off hand but to my knowledge the JDM DC 4-1 is an exact duplicate to the OEM Honda JDM 4-1 only cheaper.
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Old Dec 1, 2004 | 06:22 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (4DoorGeezer)

dc will make more power
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Old Dec 1, 2004 | 06:22 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (4DoorGeezer)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4DoorGeezer &raquo;</TD></TR><TR><TD CLASS="quote">Which header makes more power on a B18C-5/B18-C?</TD></TR></TABLE>
They are about the same, and if you can still find a DC JDM 4-1 I can't think of a reason not to buy it.

The OEM JDM 4-1 has a slight advantage if you're trying to hide your improvements, because you can use the OEM upper heat shield to hide the header.
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Old Dec 1, 2004 | 06:40 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (George Knighton)

It's not an exact duplicate, there are minor differences in the bends, welds, and pipe sizings. Not to mention weight, collectors, and appearance. I would wager that the DC makes more power, but only marginally.
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Old Dec 1, 2004 | 06:49 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (Greenery18)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Greenery18 &raquo;</TD></TR><TR><TD CLASS="quote">It's not an exact duplicate, there are minor differences in the bends, welds, and pipe sizings. Not to mention weight, collectors, and appearance. I would wager that the DC makes more power, but only marginally.</TD></TR></TABLE>

I knew there was a little more to it then I stated.. Needless to say glad I
have a DC JDM 4-1 that i picked up brand new for $220 I know DCs usually age well and dont fall apart like my POS HOTSHOT Header I had
on my nissans of past ( SR20 )
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Old Dec 1, 2004 | 10:14 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (myhatchrips)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by myhatchrips &raquo;</TD></TR><TR><TD CLASS="quote">dc will make more power</TD></TR></TABLE>

Not true, I have seen the JDM make as much as 8+ more hp on GSR set ups, the JDM IMO is the better header of the 2. Just my opinion though.
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Old Dec 1, 2004 | 11:06 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (PreStaged12s)

i agree. i would go with a jdm itr 4-1 over dc. i dont like dc, just my personal opinion take it for what u will.
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Old Dec 1, 2004 | 11:17 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (4DoorGeezer)

Ground clearance is better on the JDM ITR header.
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Old Dec 1, 2004 | 12:46 PM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (b19coupe)

https://honda-tech.com/zerothread?id=1052589


the JDM ITR header has a collector very similar to this one. CRAPPY

the JDM DC has much better collector more power! rice nice!
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Old Dec 1, 2004 | 01:30 PM
  #11  
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (johnzm)

I dont have the chart to prove it, take my input however you want. I have a friend with a 2.0l GSR, he had the JDM DC on their, dynoed it, switched over the the JDM and mad +5hp top end and it was pretty much the same throught the rest of the power band, revved it all the way to 9000, so yeah.
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Old Dec 2, 2004 | 10:07 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (b19coupe)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b19coupe &raquo;</TD></TR><TR><TD CLASS="quote">Ground clearance is better on the JDM ITR header.</TD></TR></TABLE> yes clearance is better than DC header, IMO you hit something with a DC header....it's gone.
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Old Dec 2, 2004 | 10:14 AM
  #13  
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Default

Plus you can get a skid plate for the JDM ITR header....


Modified by AnotherGSR at 7:31 PM 12/2/2004
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Old Dec 2, 2004 | 01:15 PM
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Default Re: (AnotherGSR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AnotherGSR &raquo;</TD></TR><TR><TD CLASS="quote">Plus you can get a skid plate for the JDM ITR header....


Modified by AnotherGSR at 7:31 PM 12/2/2004</TD></TR></TABLE> How low does the DC header hang exactly?
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Old Dec 2, 2004 | 01:16 PM
  #15  
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (QUiKSR20)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by QUiKSR20 &raquo;</TD></TR><TR><TD CLASS="quote">

I knew there was a little more to it then I stated.. Needless to say glad I
have a DC JDM 4-1 that i picked up brand new for $220 I know DCs usually age well and dont fall apart like my POS HOTSHOT Header I had
on my nissans of past ( SR20 )</TD></TR></TABLE>

THat is a sweet *** deal on that header, may i ask where'd u get it from for that cheap?
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Old Dec 3, 2004 | 11:00 AM
  #16  
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (4DoorGeezer)

From a friend who was just trying to sell a few left from his shop.. I know there usually alot more.
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Old Dec 3, 2004 | 11:28 AM
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (4DoorGeezer)

jdm itr
the dc just hands way too long
i'm sure more than 99% of the people that have the jdm DC has it dented already


Modified by riceball777 at 7:56 AM 12/4/2004
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Old Dec 3, 2004 | 11:56 AM
  #18  
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (riceball777)

I hope I dont dent mine it doesnt seem that much lower than a
JDM OEM 4-1 I have my CRX Si at stock ride height more or less so
im hoping I will be ok.
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Old Dec 4, 2004 | 11:40 AM
  #19  
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Default Re: DC JDM 4-1 header vs. JDM ITR 4-1 (riceball777)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by riceball777 &raquo;</TD></TR><TR><TD CLASS="quote">jdm itr
the dc just hands way too long
i'm sure more than 99% of the people that have the jdm DC has it dented already


Modified by riceball777 at 7:56 AM 12/4/2004</TD></TR></TABLE>does it hang lower than those other more high quality Headers?
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