JDM CTR EK

Which header do you guys like better? What's the diff? JDM ITR 4-1, Mugen 4-1, or Mugen 4-2-1? Thanks guys.

ZygSpeed

https://honda-tech.com/zerothread?id=766629

Somewhere in there you might find something useful.
It really depends on a lot of things, like where you want the power and how much you're willing to spend for it.

jond

Look like to me that mugen is always at the bottom of the pack.
I personally would go with the DC JDM header. I think you can find them for around $275.


3K-6K
spoon 104.7096774
dc jdm 104.6677419
type one 104.2645161
comptech 104.2516129
SMSP 104.1064516
toda 103.6580645
ITR JDM 103.5064516
Mugen 103.5
Mutech 103.483871
Jun 102.8096774
stock 2.5 101.0741935
stock 100.6483871

3K-8.4K

spoon 135.5709091
type one 135.3418182
dc jdm 135.3309091
SMSP 135.3236364
toda 135.0927273
comptech 134.9090909
ITR JDM 134.6018182
Mutech 134.2781818
Mugen 134.02
Jun 133.5709091
stock 2.5 130.6745455
stock 129.6363636

5.5K-8.4K

spoon 168.3266667
toda 168.14
SMSP 168.1
type one 168.0433333
dc jdm 167.81
ITR JDM 167.3833333
comptech 167.3233333
Mutech 166.8666667
Mugen 166.38
Jun 166.1033333
stock 2.5 161.6866667
stock 159.7366667

6.5K-8.4K

SMSP 179.635
toda 179.16
spoon 178.575
type one 178.525
dc jdm 177.98
ITR JDM 177.975
comptech 177.725
Mutech 177.43
Mugen 176.575
Jun 176.18
stock 2.5 172.025
stock 170.37

7K-8.4K

SMSP 183.5
toda 182.7933333
spoon 181.8933333
type one 181.5333333
Mutech 181.22
ITR JDM 181.12
dc jdm 181.1133333
comptech 180.88
Mugen 179.5933333
Jun 179.2
stock 2.5 174.9333333
stock 173.4933333

Nishant

where did you get these #'s if you don't mind me asking?

i'm gonna get the SMSP or hytech header

1GreyTeg

http://bob123e.tripod.com/thegreatheadertest/

Of course results may vary, but you get a good idea of quite a few of the more popular ones.

98itR484

You can check the great header test.......link posted above...but i'll still put in my .02 cents..

Stock 98 ITR 164whp

Taken off dyno...SMS header installed, exhaust bolted back.....Put back on dyno..

Stock 98 ITR w/ ONLY SMSP header (stock intake ecu etc) 187whp.

23whp gain from only the SMS, dyno was posted on HT to back my sh*t up

jond

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by swtxaznrac3r &raquo;</TD></TR><TR><TD CLASS="quote">where did you get these #'s if you don't mind me asking?

i'm gonna get the SMSP or hytech header</TD></TR></TABLE>

https://honda-tech.com/zero...age=2

ZygSpeed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98itR484 &raquo;</TD></TR><TR><TD CLASS="quote">Stock 98 ITR 164whp

Stock 98 ITR w/ ONLY SMSP header (stock intake ecu etc) 187whp.

23whp gain from only the SMS, dyno was posted on HT to back my sh*t up</TD></TR></TABLE>

That was the SMSP header and his 2 1/2" exhaust vs. the stock car. IIRC

B2FiNiTY

iTrader: (2)

He's talking about his car I believe.

jond

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zygspeed &raquo;</TD></TR><TR><TD CLASS="quote">That was the SMSP header and his 2 1/2" exhaust vs. the stock car. IIRC</TD></TR></TABLE>

I would like to know the same. 23whp for a header hooked up to 2.25'' exhaust seems hard to believe. He must mean everything SMSP from the header to the muffler which I would guess would cost around the same as a turbocharger.

98itR484

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

I would like to know the same. 23whp for a header hooked up to 2.25'' exhaust seems hard to believe. He must mean everything SMSP from the header to the muffler which I would guess would cost around the same as a turbocharger.

</TD></TR></TABLE>

the 23whp i am reffering to is myown experience with the SMSP header.

It was the SMSP header and my own custom made exhaust, which is a 2.5" mandrel bent exhaust to a spoon n1 muffler. Its a full 2.5" exhaust, the spoon flange was cut and a 2.5" flange was welded in place. The entire set up cost round $1200.

I understand it is hard to believe, but i did post my graphs up,they should still be around somewhere

ZygSpeed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98itR484 &raquo;</TD></TR><TR><TD CLASS="quote"> It was the SMSP header and my own custom made exhaust, which is a 2.5" mandrel bent exhaust to a spoon n1 muffler. Its a full 2.5" exhaust, the spoon flange was cut and a 2.5" flange was welded in place. </TD></TR></TABLE>

I think the rest of us were just trying to include the fact that the 23 whp gain included a 2 1/2" exhaust in addition to the header (vs. using the stock ITR exhaust with the SMSP header).

Still a nice gain by only replacing the exhaust!!