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Old 09-17-2013, 10:09 AM   #151
Devy
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He is already making good power and his tune is working very well. For the amount if horsepower he would gain it would not be worth The money put in... Might as well put that money into something else that will give him what he wants instead of buying an intake unless he really wants the sound. Also a protune or e tune on top of buying the intake would be needed to actually gain the most amount of power you can put of the intake. IMO I would use the money for something else. The stock airbox is designed well and is good for well past 300whp
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Old 09-17-2013, 10:40 AM   #152
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Old 09-17-2013, 11:48 AM   #153
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Bugeye != GR
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Old 09-17-2013, 11:56 AM   #154
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not to mention the fact that the full oem factory induction tract was still mounted.

about a month into ownership i pulled out the ram air and the snorkus, and slapped a velocity stack from summit or jegs into the filter box from inside the fenderwell (iow, turned it into a CAI), sealed off the old ram air hole into the fenderwell, then finished it off by replacing the panel filter with a K&N.

cost well less than $100.
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Old 09-17-2013, 12:03 PM   #155
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Quote:
Originally Posted by the suicidal eggroll View Post

Bugeye != GR
True, but there should still be a substantial pressure drop with the GR model? I've been trying to look for that info I between meetings at work. I'm def not familiar with the older models but would be interested in knowing?
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Old 09-17-2013, 12:29 PM   #156
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True, but there should still be a substantial pressure drop with the GR model? I've been trying to look for that info I between meetings at work. I'm def not familiar with the older models but would be interested in knowing?
The intake system was completely re-designed in '08, and from what I understand the new one is significantly less restrictive than the older models.
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Old 09-17-2013, 12:34 PM   #157
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Quote:
Originally Posted by the suicidal eggroll View Post
Bugeye != GR
My tuner told me the Legacy-style (newer) intakes are more restrictive than the old, thus potential gains are greater with the new cars.

That review matches my experience fairly well. Better throttle response, quicker spool, better top end. I just don't understand why people vilify the intake so much.

I understand just because some people get good results, does not mean everyone will. And by the same logic, just because some don't get noticeable gains, does not mean nobody will.

I am willing to bet the difference between the two camps comes down to the tuner. I live in the NW and am lucky to be close to several of the top tuners out there.
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Old 09-17-2013, 12:39 PM   #158
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My tuner told me the Legacy-style (newer) intakes are more restrictive than the old, thus potential gains are greater with the new cars.
The tuners I've talked to have said the opposite. Go figure...
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Old 09-17-2013, 12:46 PM   #159
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edited, drifting off topic, sorry
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Old 09-17-2013, 12:49 PM   #160
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edited, drifting off topic, sorry
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Old 09-17-2013, 12:54 PM   #161
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The tuners I've talked to have said the opposite. Go figure...
My tuner could be wrong, he did suggest I'd see some gains from a 3" exhaust, and that turned out to be bogus. But would be nice to see some test data or something.
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Old 09-17-2013, 02:11 PM   #162
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Quote:
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That review matches my experience fairly well. Better throttle response, quicker spool, better top end. I just don't understand why people vilify the intake so much.
I'm in the same boat. The noise I rarely hear since I rock out most of the time ( do admit it does sound good tho), but I the smoothness to red and better response was totally undeniable in my car.

I went off of tuners advise as well due to the pressure drop and if his reported gains tested to be round 12-15hp.

As far as I'm concerned, there's going to be advocates for either side. As for me, I was skeptical at first due to all of the info researched here and on the manifesto. I just recently decided to differ from that and based of off tuners recommendation got it. Given the point that I'm at with power modding and the ease of the install, I think it was a good choice. All I'm saying is I do believe it helped out with my situation.
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Old 09-17-2013, 02:56 PM   #163
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Originally Posted by the suicidal eggroll View Post
I do believe it is. At 1 psi I think you'd probably see tangible benefits with an aftermarket intake. Maybe that point is at around 350-400 g/s, but it's not in the 200s that you get with a mostly stock car.

When is somebody going to stick a pressure sensor in their intake and start measuring this stuff?
This is exactly what the Oakos review showed.
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Old 09-17-2013, 03:08 PM   #164
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This is exactly what the Oakos review showed.
You're right, I mis-spoke. What I meant to say is that you're not going to see a 1 psi difference between the stock and aftermarket intake at near-stock power levels. We also have no idea what condition his stock filter was in when he did that test.

Last edited by the suicidal eggroll; 09-17-2013 at 03:38 PM.
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Old 09-17-2013, 03:50 PM   #165
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Originally Posted by the suicidal eggroll View Post
You're right, I mis-spoke. What I meant to say is that you're not going to see a 1 psi difference between the stock and aftermarket intake at near-stock power levels. We also have no idea what condition his stock filter was in when he did that test.
If the previous filter was filthy that would certainly affect the results. But the data still stands, there is reason to believe a .5 psi improvement in pressure drop in the intake is there for the taking, which should correspond to at least 1 psi on the outlet side of the turbo. For a VF car, which typically can't hold boost at higher rpm this should translate to more peak power. The theory is solid, the math works, there are results that back it up.

It would be cool to see more tests done with different model cars and intakes, to see what the potential is.
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Old 09-17-2013, 04:05 PM   #166
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And regardless of any and all info and testing people will do... there will still be people out there that say STOCK IS THE BEST EVER FTW.
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Old 09-17-2013, 04:24 PM   #167
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stock is far from the best ever. that's why we have such a robust aftermarket community.

however, stock is:

1) better engineered--like by guys with instruments and engine dynos and stuff
2) "free" with the car

there should ALWAYS be an assumption that the oem part is best until proven otherwise. many times, the bean-counters and QC nazis have diluted the engineering design goals, ie "this makes the suspension too tight, people want more comfort," or "this aggressive tune is going to result in x # of failures per thousand cars, and that's too many" but rest assured there has been a SUBSTANTIAL vetting process for ANY part you see on the car.

dismissing that process out of hand just because "it's aftermarket, yo!" is myopic and sophomoric.
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Old 09-17-2013, 05:01 PM   #168
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id keep it considering your making good power off it
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Old 09-17-2013, 05:19 PM   #169
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dismissing that process out of hand just because "it's aftermarket, yo!" is myopic and sophomoric.
Don't think anyone is saying that. OEM has to deal with many issues that enthusiasts are not concerned with. Why can't Subaru just put in a 3" downpipe, everyone on this board knows it works more effectively. But there are emissions regulations, NVH, warranty, cost and other concerns that they care greatly about.

My opinion is to stay as close to stock until it holds me back. I left the OEM BCS on my car until I went to the Dom1.5, because the stock system worked fine, for me. If you are travelling through the middle of nowhere and have a problem, a podunk USA mechanic is going to have a better chance at helping if the car is not crazily modified.
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Old 02-08-2014, 03:15 PM   #170
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I installed my AEM cai today. drove the car around for a while, I'm tuned on E85 with every other bolt on imaginable (except for tgv deletes, which will be done soon.) As well as p&p intake manifold and throttle body, massive tmic, equal length (stock manifolds for now), and an 8cm evo3 16g, mbc at 23psi, etc, etc...

No changes to the tune yet but i have been eyeballing my wideband and boost gauge.

This is what i've noticed without tuning:
-Car idles better, engine seems smoother
-Throttle response is slightly better
-AFR dropped from 11.7-11.9 to 10.6-10.9 at WOT.
-AFR more consistently holds 14.7-14.9 at part throttle cruising
-Acceleration "feels" smoother

Where i've really noticed a definitive difference is:
-Turbo is loud as fvack
-Bypass is loud as fvack
-Exhaust note is smoother
-Turbo seems to spool effortlessly, and i mean effortlessly.
-Boost builds much faster, even at part throttle I'm seeing 20-23psi by 2800-3000 rpm
-Boost holds better to redline than with the stock box
-I need to turn my MBC down O_o

I actually think once it's retuned, it will perform much better than it did with the stock airbox.
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Old 02-09-2014, 02:28 AM   #171
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I have run the aem for the past 18k miles or so. Its a way better desigb than cobbs. Dry filter, real sealed partition etc. It also scales very close to the stock setup so no suprise youre fueling isnt way out of wack ( it still is though so get a tune).

I just had to replace mine with a 73mm kstech intake as i was maxing the aem out. Dom1.5 e85/elh etc etc.
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Old 02-09-2014, 10:46 AM   #172
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I have run the aem for the past 18k miles or so. Its a way better desigb than cobbs. Dry filter, real sealed partition etc. It also scales very close to the stock setup so no suprise youre fueling isnt way out of wack ( it still is though so get a tune).

I just had to replace mine with a 73mm kstech intake as i was maxing the aem out. Dom1.5 e85/elh etc etc.
Yeah, I'm pretty sure the positives aren't due so much in part to adding the cai itself but, more attributed to the whole system working together more efficiently. Really, the cai seems to have just opened up one last restriction for me.

Tune is scheduled, just gotta wait till this crap weather is gone.
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Old 04-29-2014, 02:11 PM   #173
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Any update on your gains tuned with the aem cai?
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Old 05-01-2014, 09:49 AM   #174
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Any update on your gains tuned with the aem cai?
I'm street tuned, dyno numbers don't really mean much to me. Just a hypothetical number based on theoretical math using an educated guess.

I'm more concerned with ET's and trap speed to guage performance. I'll be hitting the track soon tho.
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Old 07-30-2014, 10:58 PM   #175
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I would love for someone to put this debate to rest with dyno comparisons between stock and aftermarket, both with a pro tune of course. Anyone want to donate money for my dyno time?
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