hmm... my colleague installed his 4-1 ceramic headers on his b18b last weekend along with a CAI and he experienced neglegible improvements after the upgrades. Although he has an auto, he was hoping to feel more of a boost.

I have a stainless Greddy 4-2-1 one piece header waiting to go in this weekend and im wondering if i would have the same results. Having doubts after spending $300+ is not good. I already have an AEM CAI and Thermal R&D Catback on my 5-speed.

Can anyone here can share their impressions after getting a Header upgrade....

 

i actually just installed my header on my b18b last night to and i cant feel any diff at all except under 3k it feels a little better but outherwise no diff really

 

 

im thinkin about buyin a header real soon...im kinda worried about that myself...but im leaning on getting a 4-1 dc sports header.. isnt the 4-1 more mid/high end??? correct me if im wrong.. and isnt the 4-2-1 for low/mid range?? thanks

 

i think its saposta be but i remember there being a post someplace about that , the 421 actually being better for mid high range , im not sure if it was h-t or not but its worth a search

 

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

They never listen, do they?

If you want power, expect to spend $100/hp. This is a realistic number. I can't speak for the DC 4-1 (except to say DC used to know what they were doing), but the greddy should yield positive numbers.

 

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

They never listen, do they?
</TD></TR></TABLE>

heheh, nope.

Its a basicly bolt on, on a low modified engine. You are not going to feel a big difference, but since when do we care about feel? We do drive pretty torqueless cars

If a car is faster, shouldn't that be the ultimate outcome?

Anyways, a header by itself is not going to make a huge difference. Its one peice of a three peice system (highflow cat, exhaust), that ultimately should pave the way for much bigger modifications.

By itself it is still being corked off by the stock cat, and pee shooter exhaust.

The only real way you would *feel* a big difference is if it was a huge bottle neck, but at this point its not. You are still running stock cams, stock compression, NA, etc.

 

and To another Michigan Guy!

You gotta look at the whole path. Engine = Air pump

You want the Filter/Intake/Manifold/Heads/Cams/Header/Cat/Pipes/Resonator/Muffler
to all complement each other. A bottleneck anywhere will negate some of the gains by you should get from the other components.

 

Remember, a header is usually lighter than the stock cast exhaust manifold, so at least you're taking some weight off.

 

would a higher flowing cat converter be a better upgrade than header? this is more cost effective too. anybody out there have before and after dyno's of high flow cat??

i guess it dependes on what kind of header also, say a dc 4-2-1?

 

G.G. Allin says: Start at the back and work your way up. Good cat-back and cat first, then header.

 

any suggestions on where to get a good cat?

GroupbuyCenter has the Random Tehcnology Hi-Flow Cats available:http://www.groupbuycenter.com/buy.aspx?id=11180

So you want to stay street legal and still get the maximum performance from you car? Try the latest in Hi-Flow catalytic converters from Random Technology. These Hi-Flow cats are the answer to your street-legality and performance problems* offering the highest flow rates of any catalytic converters on the planet !


Integra All 92-95 (exc. 94-95 GSR) 822019 $217.55



Modified by IntEGNYC at 3:13 PM 8/1/2003

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IntEGNYC &raquo;</TD></TR><TR><TD CLASS="quote">any suggestions on where to get a good cat?</TD></TR></TABLE>

smsp

 

I have a greddy 4-2-1 with aem cai and thermal cat back.......the header was th4e last thing i added to the combo......i am not gonna guess numbers or anything but the power delivery seemed to smooth out between about 3000 to redline......its not blisteringly fast by any means but smoother......hope htis helps!!!

 

[QUOTE=IntEGNYC]any suggestions on where to get a good cat?

Carsound...$100 from Inline-four.

 

2.25 or 2.5 inlet/outlet for a stock ls?

 

i just installed a dc 4-2-1 in my car the other day i dont really feel any difference at all
then again i did not feel a difference in any of the mods i did to my car including my ctr cams

 

just keep your old cat and clean it out; cost: 2 minutes and $0. all you have to do is get a lead pipe and a hammer, stick the pipe in the cat, and then proceed with whacking the pipe with the hammer until all that crap falls out. why would you waste money on a shiny cat anyway? nobodys gonna see it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by riceball777 &raquo;</TD></TR><TR><TD CLASS="quote">i just installed a dc 4-2-1 in my car the other day i dont really feel any difference at all
then again i did not feel a difference in any of the mods i did to my car including my ctr cams</TD></TR></TABLE>

Hmm, CTR cams and LS tranny.....
That combo might explain the latter.

*edit*

Hmm, 17" wheels, too...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hites &raquo;</TD></TR><TR><TD CLASS="quote">just keep your old cat and clean it out; cost: 2 minutes and $0. all you have to do is get a lead pipe and a hammer, stick the pipe in the cat, and then proceed with whacking the pipe with the hammer until all that crap falls out. why would you waste money on a shiny cat anyway? nobodys gonna see it.</TD></TR></TABLE>

Gutted cat does nothing besides make your car sound like complete crap. It can almost hurt power due to the air having no flow while moving through it. Air going through a gutted cat is so turbulent causing a loss in power sometimes. Want to upgrade? Go test pipe or high flow cat.

 

I still have a brand new DC 4-1 ceramic non vtec header.



$300

 

The Greddy header was installed yesterday.

O M G



the b18b never really delivered much power beyond 3500 rpms but the new headers beg for the 5500 RPM shifts.


Modified by IntEGNYC at 4:14 PM 8/4/2003

 

Photos tonight :D

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IntEGNYC &raquo;</TD></TR><TR><TD CLASS="quote">hmm... my colleague installed his 4-1 ceramic headers on his b18b last weekend along with a CAI and he experienced neglegible improvements after the upgrades. Although he has an auto, he was hoping to feel more of a boost.

I have a stainless Greddy 4-2-1 one piece header waiting to go in this weekend and im wondering if i would have the same results. Having doubts after spending $300+ is not good. I already have an AEM CAI and Thermal R&D Catback on my 5-speed.

Can anyone here can share their impressions after getting a Header upgrade....

</TD></TR></TABLE> You will never feel Boost from a header.......haha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IntEGNYC &raquo;</TD></TR><TR><TD CLASS="quote">The Greddy header was installed yesterday.

O M G



the b18b never really delivered much power beyond 3500 rpms but the new headers beg for the 5500 RPM shifts.

beyond 3500 or before...my b18b delivers up to about 6000 6500....not much but it delivers..lol


Modified by IntEGNYC at 4:14 PM 8/4/2003</TD></TR></TABLE>