I want to know how to recognize a JDM header if it is "real one", are there any numbers on the header, or any signs? Where are they located ?

thanx in advance....

 

The header should be pretty easy to identify, since it has a pretty distinctive look, and I'm not aware of any copies that actually attempt to replicate the exact look of the OEM part. Are you familiar with what the header looks like?

 

I know what it looks like, but since this one is polished out and inside by a mechanic, i would like to know if its a copy or OEM, cause i didnt get it directly "from the box", it was polished before was handed to me.

thats why it would be easy to look if there is a numer on it or a sign...

 

If it has brackets for the heat shield, it's real.

 

Aha so no numbers or signs? :-)

 

Anyone?

I will take some pics of it asap and post it here to let you "judge" it :-)

 

These are JDM Headers

 

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

Where are the others? I only see one header in that photo.

 

Do you have another pic of its front side, so i will compare it... ?

 

not the best frontal shot of this header... but you can see the brackets where the OEM heatshields bolt to. They're on every jdm 4-1 header i've seen.

 

Found some better pics.

 

I love pictures

 

i have a knock off jdm itr header for like 140 and it looks and feels just like all those, i love it and got it new , bolts up to all heatsheilds/skidplates

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jason bouchard &raquo;</TD></TR><TR><TD CLASS="quote">i have a knock off jdm itr header for like 140 and it looks and feels just like all those, i love it and got it new , bolts up to all heatsheilds/skidplates </TD></TR></TABLE>

Where did you find it??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Splat &raquo;</TD></TR><TR><TD CLASS="quote">If it has brackets for the heat shield, it's real.</TD></TR></TABLE>

Not necessarily. A replica JDM 4-1 header was recently released by one of the dealers in the Sponser Marketplace. Please see here:

https://honda-tech.com/zerothread?id=966076

These are their replica JDM headers:







They claim similar performance and will bolt up to the heat shields and/or the aftermarket skidplates. Looks are similar, but I can tell just by looking at the pics that it's a "replica".

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Twin-cam &raquo;</TD></TR><TR><TD CLASS="quote">I want to know how to recognize a JDM header if it is "real one", are there any numbers on the header, or any signs? Where are they located ?

thanx in advance....</TD></TR></TABLE>

Hey, I just took a peek at my JDM header (waiting to be installed), and there is a stamp on one of the heat shield brackets, but mine is different from the pic that Splat posted above. Anyone know why?

 

the stamps are probly different on each header, but as you can see the street imports 4-1 has the brackets but no stamp... i just ordered one of those, hopefully it performs as well, but for 150 it was too good to pass up

 

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

Where did you find it??</TD></TR></TABLE>

ebay

http://cgi.ebay.com/ebaymotors...%3AIT

 

I remember draging this thing from CA to NJ back in 98 and finding out it does not bolt on.
Not in mood to do chop shop job inorder to retro fit. Send it right back for a spoon 2 piece instead.
I just hate the cheap quality with rust included.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by machgo5go &raquo;</TD></TR><TR><TD CLASS="quote">I remember draging this thing from CA to NJ back in 98 and finding out it does not bolt on.
</TD></TR></TABLE>

Dragging what thing?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by machgo5go &raquo;</TD></TR><TR><TD CLASS="quote">I remember draging this thing from CA to NJ back in 98 and finding out it does not bolt on.
Not in mood to do chop shop job inorder to retro fit. Send it right back for a spoon 2 piece instead.
I just hate the cheap quality with rust included.</TD></TR></TABLE>

care to elaborate ??

what fittment problems did you have ??

 

What is the actual internal diameter of the JDM header? i Considering it has the double walled collector...it has an OD of 60.5mm and judging by those pictures the ID is approx 50mm which isnt much bigger than the ID or the USDM ITR header collector........