i was just wondering because im about to buy one of those but im not sure which one is better i heard 4-1 or more drag...but 4-2-1 is more "safer" for street is that tru???....jus lemme know wassup thanx peace~

INTEGRA GSR 94 RED
AEM CAI
RS*R INDIVIA EXHAUST


[Modified by thaigsrdrv16, 3:38 AM 12/14/2001]


[Modified by thaigsrdrv16, 3:38 AM 12/14/2001]

 

4-2-1 = more low end

4-1 = more high end

 

yea.....nothing is really safer than the other.....what are you looking for, most power, or most effective for the street?
like acur said 4-1 for most power
4-2-1 for all around

 

To clarify that post.....

4-1 will make PEAK power higher in the RPM range

4-2-1 will make PEAK power lower in the RPM range

 

Go with 4-1 header! When you race, its all about Top end. You'll never be under 3k rpms when you race, so 4-1 headers will be the one. Plus, the top end feels so good with a 4-1 header.

I'm lookin for JDM 4-1 headers. If you got the money, get the JDM.

 

thanks...but i dunno i think i might hit up the 4-1 cause i do race laot and i do want more power....peace

 

The reason he PROBABLY mentioned safety is because a 4-1 header doesn't allow as much ground clearance. A 4-2-1 header only has to fit 2 pipes under the oil pan/cross-member (on my car anyways) while a 4-1 header fits 4 pipes under the oil pan/cross-member. This means if your car is "slammed to dah grizzound y0," you will be more likely to damage it.

As for performance gains 4-2-1 headers provide more midrange power over 4-1 headers. 4-2-1 headers don't yield as much peak horsepower as a 4-1 header. If you don't race, you'll probably prefer the 4-2-1. If you do, you'll probably prefer the 4-1. Either way, decided if you value your midrange or top end.

 

does my car look like it has enough ground clearance for a jdm 4-1 header without scraping? i also plan on getting an apex n1, my car is lowered 1.5 in the rear and 1.75 in the front. i hope thats enough ground clearance.

 

that looks like enough clearance...unless you like to go off-roading
but i heard ALOT of good stuff about the JDM type R header...plus the fact that
it's tougher as far as if you hit a bump with the DC...it'll dent alot easier...i think
it might be due to the material/construction...once you dent your header...there goes your performance

 

To pick a header, decide how far you want to modify. If you plan on settling with just bolt-on's I suggest you get the 4-2-1. If you plan on getting aftermarket cams and such, then you certainly want the 4-1 header, but 4-2-1 is good for a bolt-on setup.

 

nice clean car, nice clean house, nice clean drop, wait... stock rubber?? Curse michelin for even making xgt's (bad wear, bad wet, very noisy)and mxv4+'s (mad $$, bad dry, bad wet), why o' why are they oem??? Schiesty scheme

 

But fact of the matter is, you may not hit the track even if you do get cams/gears/VAFC, so 4-2-1 may still be the option even if you increase power down the road if you prefer low-to-mid range power. More advanced setups also help for low-to-mid and so would a 4-2-1 with higher end mods if that's what you're trying to achieve.

 

hopefully you wont go Turbo soon cuz ur Header will just be replaced by a Turbo Manifold I know my DC 4-2-1 will be gone next summer