Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

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Old 10-11-2003, 11:53 PM
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Anyone running an intake in there STI if so does it help. Read some good and bad things just want to know what your take is on this.
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Old 10-12-2003, 12:03 AM
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Please post on the EJ25 forum. I do not know of anyone here that currently runs an intake(whether cai or shorty) on their STI. The people on the EJ25 forum can answer your questions. I know at least two people who removed their resonator though so that may be the wise route.

But I would be very wary of putting an intake, which is designed for EJ20's, into an EJ25.
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Old 10-12-2003, 12:06 AM
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Originally posted by BoOm
Please post on the EJ25 forum. I do not know of anyone here that currently runs an intake(whether cai or shorty) on their STI. The people on the EJ25 forum can answer your questions. I know at least two people who removed their resonator though so that may be the wise route.

But I would be very wary of putting an intake, which is designed for EJ20's, into an EJ25.
Hmm, I got a Blitz SUS Intake I was gonna install. Whats the issue with it?
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Old 10-12-2003, 12:14 AM
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An intake is not a "stand alone" mod, like some think it is. You'll be ok, but it will work better as a part in a overall build up.
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Old 10-12-2003, 12:14 AM
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said the sti will run lean on an intake also dave u got a boost controller on
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Old 10-12-2003, 12:17 AM
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Originally posted by DaveWRX
Hmm, I got a Blitz SUS Intake I was gonna install. Whats the issue with it?
Dave, with the SUS, I would be careful on the method you install it. You will notice there is a metal piece that acts like a "blocker" for the intake. I would experiment with it on or off. I heard stories where older SUS's will need that blocker while the newer SUS's shouldn't use that blocker but the newer ones will come with it. It may throw a CEL for you though with that intake.
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Old 10-12-2003, 12:18 AM
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Originally posted by Mach5WRX
An intake is not a "stand alone" mod, like some think it is. You'll be ok, but it will work better as a part in a overall build up.
That is entirely true. My Perrin short ram gave absolutely no or very minimal gains but people who have engine management that is tuned for the Perrin short ram will receive gains on it.
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Old 10-12-2003, 12:23 AM
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Originally posted by BoOm
Dave, with the SUS, I would be careful on the method you install it. You will notice there is a metal piece that acts like a "blocker" for the intake. I would experiment with it on or off. I heard stories where older SUS's will need that blocker while the newer SUS's shouldn't use that blocker but the newer ones will come with it. It may throw a CEL for you though with that intake.
Ive been running with CEL since the exhaust anyways. Gotta get someone to reset it... Hmm, guess I will do a bit more research before installing it. Figured it would help with the exhaust and dp and all, but what do i know.
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Old 10-12-2003, 12:25 AM
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Only way is to try...I don't own an STI, what do I know.
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Old 10-12-2003, 12:26 AM
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You guys are gonna get in trouble.

I'm gonna tell.
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Old 10-12-2003, 09:14 PM
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I have a Injen cold air intake on my STI and have had no problems.
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Old 05-11-2005, 05:51 PM
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Please refer to this thread for the CAI debate.
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Old 05-21-2005, 03:14 PM
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My experience

I have a 2004 STi and have the K & N Typhoon on it and it runs great! The car has a "YOU CAN FEEL IT" power increase. You dont need a dyno to tell you that, its that big a difference. No problems what so ever.

This is, ONE OF THE FEW PRODUCTS ON THE MARKET THAT REALLY WORKS ON OUR CARS!! Hell ive spent a $1000 on other things (blah) and lost HP!

The Blitz is like the screen on my front door, id be scared to death to put that thing on my car. Yes i know, i should not have said that. Im gonna get my hand slapped!
Its just an oppinion on the Blitz thing, no facts to back it up!
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