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Old 31st May 2008, 04:31 PM   #1 (permalink)
Robbie
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Headers 4-1/4-2-1??

ok, so i have had a few mixed coments on this matter, i have a 96 spec itr, and want to know for aftermarket headers should i go for 4-1 or 4-2-1?

i believe that 4-1= power/ 4-2-1=torque, is that right? and for track use, what would be recomended?

cheers
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Old 31st May 2008, 04:57 PM   #2 (permalink)
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Re: Headers 4-1/4-2-1??

go for the 4-2-1.. seem to make nice power and torque in my car and dont sit low to the ground my 2c
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Old 31st May 2008, 05:09 PM   #3 (permalink)
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Re: Headers 4-1/4-2-1??

cheers for that man, any help is good help
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Old 31st May 2008, 05:28 PM   #4 (permalink)
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Re: Headers 4-1/4-2-1??

Generally 4-2-1 = more lower torque but a bit of high end power loss
4-1 = less lower torque but more high end power

Some say go for 4-2-1 since you are rarely using high end power on the roads anyway. Some say the torque loss from 4-1's are barely noticeable but theres a noticeable high end gain. Note 4-1's usually sit lower so if you have a sacked car you might wana go for 4-2-1's.
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Old 31st May 2008, 06:03 PM   #5 (permalink)
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Re: Headers 4-1/4-2-1??

its all much of a muchness really

just get some that u can afford and they arent going to hang to low
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Old 31st May 2008, 08:15 PM   #6 (permalink)
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Re: Headers 4-1/4-2-1??

ok, cheers, so what are xforce like? i know the steal is weak, but i can reweld no worries, but do they sit low?? i havnt seen them up close on an itr before to know how low they are
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Old 31st May 2008, 09:39 PM   #7 (permalink)
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Re: Headers 4-1/4-2-1??

You probably better to pick up a second hand quality header, rather than get a new cheap one. Keep an eye out for some on trademe and in the Sales section.
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Old 1st June 2008, 10:55 AM   #8 (permalink)
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Re: Headers 4-1/4-2-1??

get some TRR ones or some the hytec's that are for sale in the sponsors forum
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Old 1st June 2008, 01:07 PM   #9 (permalink)
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Re: Headers 4-1/4-2-1??

i used to run xforce 4>1 on my itr with 2.25 collector..
it didn't hang low, and i was more than happy with torque and top end.
my personal opinion trr's are over rated, but nice brand to mention down the line when selling the car..
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Old 1st June 2008, 04:29 PM   #10 (permalink)
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Re: Headers 4-1/4-2-1??

youre kidding right? xforce over trr? 8O
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Old 1st June 2008, 09:27 PM   #11 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by CoupeTurbo View Post
youre kidding right? xforce over trr? 8O
Apparently they can make more power sometimes? I personally would not pick xforce but hey if the price is right, why not.
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Old 1st June 2008, 09:43 PM   #12 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by Integrated4Life View Post
Apparently they can make more power sometimes? I personally would not pick xforce but hey if the price is right, why not.
well, i have herd the same thing, good power, but very poor quality
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Old 1st June 2008, 10:09 PM   #13 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by Honda Addict View Post
well, i have herd the same thing, good power, but very poor quality
Yea its bin dyno proven, but i mean if its like 200 bucks then yea. But of course you want some with a good name.
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Old 1st June 2008, 10:30 PM   #14 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by Integrated4Life View Post
Yea its bin dyno proven, but i mean if its like 200 bucks then yea. But of course you want some with a good name.
Do you have any proof? or just based on assumptions?, Id think it would actually be different, depending on the setup you have
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Old 2nd June 2008, 10:22 AM   #15 (permalink)
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Re: Headers 4-1/4-2-1??

i havnt seen the proof, but i believe that jacky??? did a test with a few different brands, and xforce came out on top for power, but they are cheap quality, re welding is easy, but for the abuse they will get track racing, i think i want some better quality!!!
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Old 2nd June 2008, 10:46 AM   #16 (permalink)
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Re: Headers 4-1/4-2-1??

Yea, i heard he tested quite a few brands..maybe like 5 or 6? but i dont think the xforce gave more torque? not too sure. In the end of the day, more $$ means better quality. I reckon best value for money would be TRR or Pro1s, but there some mighty fine J's for sale on here which i would hit up.
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Old 2nd June 2008, 11:53 AM   #17 (permalink)
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Re: Headers 4-1/4-2-1??

You can buy my Pro1's. I dyno them and my ITR was the highest powered one untuned at Honda Dyno day!

$320 cash.
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Old 2nd June 2008, 02:55 PM   #18 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by ice2004 View Post
You can buy my Pro1's. I dyno them and my ITR was the highest powered one untuned at Honda Dyno day!
buy SFA. which could be put down to anything. Plus u said that ur car was stock on the day
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Old 5th June 2008, 11:23 AM   #19 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by Integrated4Life View Post
Yea, i heard he tested quite a few brands..maybe like 5 or 6?
Was this posted on here somewhere? I searched but couldnt find it. Jacky is genkei right?
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Old 5th June 2008, 11:28 AM   #20 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by Klasse View Post
Was this posted on here somewhere? I searched but couldnt find it. Jacky is genkei right?
yeap Jacky in Genkei, I dont think it was posted, but I recall Jacky telling him in person
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Old 6th June 2008, 10:49 AM   #21 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by Horny_Devil View Post
its all much of a muchness really

just get some that u can afford and they arent going to hang to low
Also depend's on what size you make the exhaust doesnt it? 2.25'' or 2.5'' to determine what will give you more power or torque like you say.

well so i thought anyway
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Old 6th June 2008, 03:13 PM   #22 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by Honda Addict View Post
i havnt seen the proof, but i believe that jacky??? did a test with a few different brands, and xforce came out on top for power, but they are cheap quality, re welding is easy, but for the abuse they will get track racing, i think i want some better quality!!!
what do you know about qaulity, especially qaulity of headers, have you held and examined xforce vs somehting "higher qaulity", do you even know what yor looking for

again you seen to insinuate an inability to withstand track condition, because the header is cheaper, and "lesse qaulity

in general you get what you pay for is the candidate suposition, however, there are plenty of chinese made products of high qaulity, its just cheap cuz they pay their staff peanuts, and once again the pay peanuts, get monkeys spiel isnt always correct
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Old 6th June 2008, 04:26 PM   #23 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by b16a2 View Post
what do you know about qaulity, especially qaulity of headers, have you held and examined xforce vs somehting "higher qaulity", do you even know what yor looking for

again you seen to insinuate an inability to withstand track condition, because the header is cheaper, and "lesse qaulity

in general you get what you pay for is the candidate suposition, however, there are plenty of chinese made products of high qaulity, its just cheap cuz they pay their staff peanuts, and once again the pay peanuts, get monkeys spiel isnt always correct

easy cowboy who made u god!!!
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Old 6th June 2008, 04:43 PM   #24 (permalink)
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Re: Headers 4-1/4-2-1??

Quote:
Originally Posted by b16a2 View Post
what do you know about qaulity, especially qaulity of headers, have you held and examined xforce vs somehting "higher qaulity", do you even know what yor looking for

again you seen to insinuate an inability to withstand track condition, because the header is cheaper, and "lesse qaulity

in general you get what you pay for is the candidate suposition, however, there are plenty of chinese made products of high qaulity, its just cheap cuz they pay their staff peanuts, and once again the pay peanuts, get monkeys spiel isnt always correct
hmm, ok well i have spent the last 5 years of my life around engineering, and yes i have held them in my hands, can see that they are cheap, the welds crack easily(although can re-weld) and they dont last as long as good brand/quality.........
i dont know if i was reading your comment wrong, but it came across as an ASSHOLE comment........ any need for that???
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Old 6th June 2008, 05:39 PM   #25 (permalink)
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Re: Headers 4-1/4-2-1??

I believe the wall thickness of the xforce headers is pretty thin too.
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