4-1 or 4-2-1....that is the question.
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The Beer-man
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From: Jax, FL
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4-1 or 4-2-1....that is the question.
...so what the hell is the answer? All I've deduced is, in general, 4-2-1 produce slightly less horsepower than a 4-1, but the power made comes sooner (i.e. lower RPM), and a 4-1 typically makes higher hp, but at a higher RPM. So my question is: In an EX, which would be better? Does it really just boil down to preference, or does one work better for the engine than the other. Also, which manufacturer makes the best header for the 7th gen. Is it HP, DC, or someone else?
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From: El Paso, Tx
Rep Power: 0 DC makes a 4-1 ceramic or stainless steel for ours. A local shop told me they would give me a discount of one, and they said it is probablly the best out there. But I dunno, I just want the best for my car, street legal (DC) or not. I've got an Ex also.
the problem with all 4-2-1's is that it disrupts the exhaust pulses. With the 4-1, you get pulses of a vacuum in the exhaust tubes, which helps to pull the exhaust out of the cylinder on the next cycle...if timed correctly. I think 4-2-1's mess up this timing. And the only header AT ALL i've been able to find for the 7th gen is the DC sports 4-1.
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From: USA, Tennessee
Rep Power: 0 Originally posted by Da1lyDr1ver
they only make 4-1 headers for our cars. HP and Kamakazie headers with the high flow cat is the best for our cars, but are not emission legal.
they only make 4-1 headers for our cars. HP and Kamakazie headers with the high flow cat is the best for our cars, but are not emission legal.
Escaped Convict
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From: Westminster, California, US
Rep Power: 368 ah no one mentioned random tech.
even if its carb exempt, since its a working highflow cat... there are rules to replacing ur cat convetor... depending on ur state law.
even if its carb exempt, since its a working highflow cat... there are rules to replacing ur cat convetor... depending on ur state law.
show us a link to the powercore header
holy crap, i found a link it costs, Your Price: $399.95
found another price for $379
and its only the upper portion...like the HP shorty (i think)
holy crap, i found a link it costs, Your Price: $399.95
found another price for $379
and its only the upper portion...like the HP shorty (i think)
Last edited by cdmx; Sep 21, 2003 at 08:24 PM.
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From: Arizona
Rep Power: 326 Originally posted by Da1lyDr1ver
they only make 4-1 headers for our cars. HP and Kamakazie headers with the high flow cat is the best for our cars, but are not emission legal.
they only make 4-1 headers for our cars. HP and Kamakazie headers with the high flow cat is the best for our cars, but are not emission legal.
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From: El Paso, Tx
Rep Power: 0 I was talkin' to like some 35 year old with a 90 Si who talks to the mechanics for one of the Honda dealerships here. And I asked him about headers, and he said that the honda mechanic said DC headers ARE THE BEST FOR HONDAS. I mentioned other brands but he kept saying DC. So I guess DC's are the best, A Honda mechanic who drag races his 1977 Lotus would know best about headers than all of us.
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From: Daleko, Illinois, US
Rep Power: 0 Originally posted by Tai
reguardless, getting headers won't get you that much horse power, to me it really doesn't matter if you get the 4-1, or 4-2-1. But that is just my opinion. But I like DC headers.
reguardless, getting headers won't get you that much horse power, to me it really doesn't matter if you get the 4-1, or 4-2-1. But that is just my opinion. But I like DC headers.
The HP and Kamikaze header are one of the best ones on the market for our cars.
Check it out:
HP Racing header
Kamikaze and DC Sports headers
Top speed Header
Megan Racing header
Weapon R Header
Could not find a pic
I have a pic of the powercore header, ill post it in the next post
HP Racing header
Kamikaze and DC Sports headers
Top speed Header
Megan Racing header
Weapon R Header
Could not find a pic
I have a pic of the powercore header, ill post it in the next post
Last edited by cdmx; Sep 22, 2003 at 07:53 PM.
