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Stock equal length more benificial than stock unequal?
Posted: Sat May 26, 2012 6:13 am
by martimus919
I forgot I had this laying around, wondering if it's worth swapping to? I like that they'll be easier to deal with than the unequal length heat shields.

Re: Stock equal length more benificial than stock unequal?
Posted: Sat May 26, 2012 6:23 am
by mike-tracy
Is that a JDM n/a manifold?
Re: Stock equal length more benificial than stock unequal?
Posted: Sat May 26, 2012 6:43 am
by martimus919
I believe it is, but I don't know how it works as N/A
Re: Stock equal length more benificial than stock unequal?
Posted: Sat May 26, 2012 7:18 am
by mike-tracy
I haven't heard of anyone doing that before... Wanna give it a go and let us know?
Re: Stock equal length more benificial than stock unequal?
Posted: Sat May 26, 2012 5:14 pm
by cj91legss
I've never even seen that manifold before
Re: Stock equal length more benificial than stock unequal?
Posted: Sat May 26, 2012 9:12 pm
by mike-tracy
Yeah it's what you get with a jdm EJ25DE I believe.
Re: Stock equal length more benificial than stock unequal?
Posted: Sun May 27, 2012 12:24 am
by jefferson
It looks like that ends in the right place to bolt the up pipe to. This is the first I have ever seen of one.
Jeff
Re: Stock equal length more benificial than stock unequal?
Posted: Sun May 27, 2012 6:00 am
by Apex3
Just a shot in the dark, but I'd imagine if equal length was more beneficial then the manifold would be equal length. But if it fits you could try it, can't hurt.
Re: Stock equal length more benificial than stock unequal?
Posted: Sun May 27, 2012 6:06 am
by subaru_styles
if i remember right don't the jdm NA's have turbo crossmembers? so the exhaust goes up and over like that?
Re: Stock equal length more benificial than stock unequal?
Posted: Tue May 29, 2012 5:56 pm
by Legacy777
The up-pipe location is close, but not the same. You'll need to modify the up-pipe if you wanted to try it out.
Here are some pics of a JDM turbo manifold.
http://www.main.experiencetherave.com/s ... tmanifold/
Re: Stock equal length more benificial than stock unequal?
Posted: Sat Jun 09, 2012 3:19 am
by jamal
Interesting manifold. I don't think an up-pipe will bolt to that though. The newer n/a manifolds are kind of like that too but have a little smoother collector because they use the new pan and have more room.
The only equal length OEM turbo manifold I know of is the twin-scroll setup on newer STis.
Re: Stock equal length more benificial than stock unequal?
Posted: Sun Jul 08, 2012 12:08 pm
by turboleg
I can't believe the pipe clears the oil filter. Did you ever try mounting it up? I'd be interested in knowing your impressions of the improvement. I've heard there isn't an extreme advantage to equal length without a twin scroll. Not sure how true that is.