I dont have it installed yet, just wondering cause as i know it, 4-1 header is good at high RPM.

 

what car?

on my cx, I got to run rich yay

 

00" si.

 

how did u get it run rich? thats not good.

 

bumping for answer.

 

00 si what headers i run the jdm itr 4-1 replica from dc i started pulling harder from 4700 all the way to red line!

 

I have the Mugen 4-1 w/ 2.5 collector.

 

yeah i mine has 2.5 inch collector to but i also ran a test pipe but u can see the perfomrance! i like it.

 

Will getting a hight flow Cat converter cause my engine light to come on with this setup.

2.5 piping all the way.

 

mine went on but for my test pipe i couldnt put my o2 sensor in so ig ot fucked and my light was on up until yesterday it went off... is there a bug on the header to put your o2 sensor into?

 

There is a bung on the header and high flow cat, (car has two O2 sens) just wondering cause the air velocity will change and the ECU might flash the engine light. I dont wanna have to go through that if there's preventive measures.

 

What RPM will you notice it? All of them because it's going to be louder. You won't even notice any gains really other than the noise. 5 hp doesn't go very far in providing gains.

 

With the 4-1 you'll notice gains later on in the power band. Might actually take away from the midrange but your top end will increase.

 

If i choose to believe Ricey mcRicerton, will be wasting my hard earn money?

 

i run rich cause my cat is now behind the 02, when stock it was in front

 

no you wont be wasting money. ricey says you wont notice much bc 5hp doesn't go along way. well, 5hp might not go along way to some, everyman for his maker. you might notice a increase he wouldn't, vise versa. in any case if you already have a cai & other small mods the header would be your next step up. imo, do it. i'm going to soon hopefully, im running 2.5 piping from my muffler with a 4.0 outlet, to a 2.5 inlet... to my stock headers/cat with 1.0(correct me if wrong) tubing, flared onto it, so yeah.. headers are in my future. gl!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by klomast3r &raquo;</TD></TR><TR><TD CLASS="quote">If i choose to believe Ricey mcRicerton, will be wasting my hard earn money?</TD></TR></TABLE>

getting a new header is like getting one of your lungs replaced, you wont notice anything unless you replace both of them!!

now im a surgeon!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by klomast3r &raquo;</TD></TR><TR><TD CLASS="quote">If i choose to believe Ricey mcRicerton, will be wasting my hard earn money?</TD></TR></TABLE>

Ricey's da man! But I'm still getting a header

 

I have 4-1 header on my Del sol they made a decent amount of top-end hp. I ran a 15.3 with intake and header, with a big toolbox in my trunk. My car ways 3,065 pounds, that is not with the tools or me in it. Ya I know that not fast! However, the header made a big difference.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by delsolb16 &raquo;</TD></TR><TR><TD CLASS="quote">I have 4-1 header on my Del sol they made a decent amount of top-end hp. I ran a 15.3 with intake and header, with a big toolbox in my trunk. My car ways 3,065 pounds, that is not with the tools or me in it. Ya I know that not fast! However, the header made a big difference.</TD></TR></TABLE>

wtf?

 

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

wtf? </TD></TR></TABLE>
lol

 

a 4-1 header will help you in the top end prolly anywhere from 4-5 thousand rpm rang and it should keep pulling intell redline

 

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

getting a new header is like getting one of your lungs replaced, you wont notice anything unless you replace both of them!!

now im a surgeon!!!</TD></TR></TABLE>

Uuuuhhh what? We have one header..... I'd like you to show me on an inline 4, which have 1 exhaust bank, where to put that extra header of yours.

In all honesty, bolt ons for our cars are a huge waste of money. Even if you get them used, a basic I/H/E is going to cost you upwards of 700 dollars for 5-10 whp tops.

A turbo setup will net you closer to 100 for 2000-3000 dollars.