ok i know a lot of people do swaps and wonder what aftermarket b-series header to use (if your NA of course) and what are the difference as far as length and how low they sit? i will try to answer them as i recently aquired 3 (dont ask) edelbrock b-series headers... im not sure if this can be applied across the board to other header brands but as far as edelbrock b-series 2pc p-flow headers go, this is how it goes: (no pics of top parts cause they are all the exact same)

itr and si header have the squigly in the bottom piece and are longer with si being longest, 99 si header is what you want for a b-series swap into any EK ex dx lx hatch if you dont want to lengthenor shorten your current exhaust set up, it bolts right up but sits the lowest, is the longest and has more bends than gsr... whether thats good or bad is up to you!!

closer look at the length difference



collector bolt angles are crooked on 99 si and 94-99 gsr header, 97-01 itr header is strait



notice the height difference. 94-99 gsr sits the highest then itr sits a little lower with the 99 si sitting the lowest it still dosent sit that low though.



this ones just for shi*s and giggles so you can get the part number or what ever, sad part is that these are soon to be discontinued and replaced with edelbrocks 1-piece header.



(man i really hope the pics loaded, first time doing this)

ok one last thing is some people say long tube better straight header is better blah blah, we are not going to argue that only observe that if you think the shortest straitest path is best go with the GSR as the pics show it certainly is shortest, smoothest, and sits highest, with itr being second shortest but with the squigly bend and sitting a bit lower (more pipe for exhaust to go through) and the 99 si being longest also with the squigly bend and hangs the lowest so eshaust gas travels the farthes in this header and it has the a longer 2 pipe if you will (same as itr) gsr has shortest 2 pipe.

hope this helps in some ones quest to find a decent header...


Modified by cusco9900 at 11:00 AM 10/13/2006


Modified by cusco9900 at 12:38 PM 10/13/2006

 

anybody finding this useful/interesting??

 

great info, thanks

 

doesn't include if the top segment is shorter... i'm assuming the top part of the si is shorter since overall the header is smaller for the smaller b16 block... just my .02 tho... good info tho the gsr is definately the smoothest...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by shibiku &raquo;</TD></TR><TR><TD CLASS="quote">doesn't include if the top segment is shorter... i'm assuming the top part of the si is shorter since overall the header is smaller for the smaller b16 block... just my .02 tho... good info tho the gsr is definately the smoothest...</TD></TR></TABLE>

tisk tisk you didnt read all of my post j/k the end of the second paragraph states "(no pics of top parts cause they are all the exact same)" i know i typed a load... i do understand what your saying, you would think the SI would be shorter due to the shorter block but the SI header actually sits the lowest (still not that low though) and the GSR sits the highest. so if your car is slammed stick with the GSR, if you want pics of the top parts i can still do it just let me know... and thanks for reading my post!!

 

but now the question on everyone's mind is... do they make power compared to other headers?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ziich2 &raquo;</TD></TR><TR><TD CLASS="quote">but now the question on everyone's mind is... do they make power compared to other headers?</TD></TR></TABLE>

while this was not the purpose of my post i guess it cant help but go there so lets do it!! imo it is the best header in its price range (sub $500) i have not put mine on yet (ill post when i do) but i put the GSR one on my buddys gsr swapped eg hatch (no internal mods, just 2.25" exhuast and intake) and it was a night and day difference, i have modded many cars and driven them afterwards and this one was the biggest butt dyno difference i have ever felt (air temp was the same before and after runs).


Modified by blinx9900 at 10:57 PM 10/18/2006

 

What setup/car?

I just ordered one for the hell of it for my B16 since it was so cheap. I didn't really get a good response about it when I was talking to my friends saying a 4-2-1 was a poor choice for a B16.

I believe that with a 2.5" collector, tube sizes will be similar to a toda. 45mm primaries, 60mm collector.

 

it actually has a 2" collector you have to have it modified to 2.5" thats what im doing right now, i got one for my b16b (in a 96 civic hatch) basically stock internalls just bpi v-stack on a sri, and the header once its done being modded to 2.5 along with 2.5" cat and 2.5" exhaust strait back. as mentioned earlier i put one on a stock GSR (in an eg) and it made a really big difference even with people in the car... i know it just butt dyno but i really felt a huge difference down low and up high in the p-band like at 8400... let me knoe how yours turns out.

now about the 4-1 nonsense what good is a 4-1 if its crushed? and yes you know they always get crushed cause they hang so damn low

 

actually I've been running my JDM ITR 4-1 for over a year and it's still mint good ole skidplate and 4x4 stance is good protection. Well I'll give you my impression on my B16 when it gets here.

and you let me know how the 2.5" collector mod goes. We should put these to the an actual dyno test.

 

anyone running a edelbrock shorty header

it supposedly has a 2.5" collector...

 

i have all of them and they are all 2" thats why my last post said you gots to mod the collector to 2.5" if it was already 2.5" it would not be street legal (cause it would not bolt up to the meow) which all edelbrock headers are. unless you run the optional race b-pipe which is 3" outlet but that is "off road part"

 

considering the collector mod, which one of these would be the best for power? The GSR one is completely different than the other two....straighter, but shorter.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">considering the collector mod, which one of these would be the best for power? The GSR one is completely different than the other two....straighter, but shorter.</TD></TR></TABLE>

well you could just say screw the collector mod and run the optional race b-pipe its a 3" turn down







you might want to remove a section and add a resonator though... the b-pipe will bolt up to any of the top pieces and that would probably be the best, aside from that, i'd put my money on the GSR for the 2.5" collector mod...

 

The reason for the different lengths most likely has nothing to do with power. Id bet anything that they are different in length to mate up to the stock exhaust location on the different chassis.

And your thinking backwards on the height thing, the si downpipe is the shortest so it will hang higher then the other two. If you don't believe me, install all three and measure.

The si does still hang a little low on a b16, mine's about an 1 1/2 below the oil pan.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Furyof4 &raquo;</TD></TR><TR><TD CLASS="quote">The reason for the different lengths most likely has nothing to do with power. Id bet anything that they are different in length to mate up to the stock exhaust location on the different chassis.

And your thinking backwards on the height thing, the si downpipe is the shortest so it will hang higher then the other two. If you don't believe me, install all three and measure.

The si does still hang a little low on a b16, mine's about an 1 1/2 below the oil pan.</TD></TR></TABLE>

i agree with your first paragraph but you seem confused on the second one, the si downpipe is actually the tallest you must have not seen the arrow in the picture, the shortest downpipe is the gsr to the right...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Furyof4 &raquo;</TD></TR><TR><TD CLASS="quote">The reason for the different lengths most likely has nothing to do with power. Id bet anything that they are different in length to mate up to the stock exhaust location on the different chassis.</TD></TR></TABLE>
No **** genious. I was asking which design would be better for power. The GSR is straighter, but shorter. A longer header is better like the Si and ITR ones, but they have more bends.


Modified by bambam at 7:53 PM 10/22/2006

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">No **** genious. I was asking which design would be better for power. The GSR is straighter, but shorter. A longer header is better like the GSR and ITR ones, but they have more bends.</TD></TR></TABLE>

harsh but agreed... except i think you meant si and itr are longer with bends... still not sure if that gives more power... we may never know i think the gsr may give more power, i have a theory on why but it will have to wait till i can take more pics...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">harsh but agreed... except i think you meant si and itr are longer with bends... still not sure if that gives more power... we may never know i think the gsr may give more power, i have a theory on why but it will have to wait till i can take more pics... </TD></TR></TABLE>

Yah, typo. Fixed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

i agree with your first paragraph but you seem confused on the second one, the si downpipe is actually the tallest you must have not seen the arrow in the picture, the shortest downpipe is the gsr to the right...

</TD></TR></TABLE>

Woops, your right I just looked at the picture and misread your post sorry. I'll be shortening my b16 version as I noticed it does hang alot lower than I'd like.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bambam &raquo;</TD></TR><TR><TD CLASS="quote">
No **** genious. I was asking which design would be better for power. The GSR is straighter, but shorter. A longer header is better like the Si and ITR ones, but they have more bends.


Modified by bambam at 7:53 PM 10/22/2006</TD></TR></TABLE>

Whoa no reason for that, I wasn't even talking to you.

 

If anyone has model 6752 for the GSR foe sale, let me know

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 7rrivera7 &raquo;</TD></TR><TR><TD CLASS="quote">If anyone has model 6752 for the GSR foe sale, let me know </TD></TR></TABLE>

absolutely, you have been pm'd i have like 4 of them...

 

I forgot to mention to you for the pics and comparison.

 

I Bought A JG 4-2-1 Header With 2" Collector For My Gs-R And Had My Collector Modifided To 2-1/4" Then Into A Carsound Cat And Magnaflow 2-1/4" Exhaust And Made 165 WHP


Modified by 4DRDB8GSR at 12:14 AM 10/24/2006

 

Can you give me the part number for the cat. you used, and maybe some pixs? I wanna do the same thing for my 97 gsr.