Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

whats the best intake?

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Old 07-27-2003, 11:10 AM
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keep your stock intake, do the silencer box mod on it, get a good replacement drop in filter, and save your money for another mod that you will get good gains from.

intakes on WRXs do nothing. The most gains you will see is just from doing the mod and using a good filter in the stock airbox.
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Old 07-27-2003, 05:06 PM
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Lightbulb if you must...

i have the injen CAI; no CEL and no rough idle, start, or stalls.

i can't vouch for it's performance improvement, i've never had mine on a dyno.

buuuttt... it does yield some nice audio waves. you can clearly hear the rush of air as the snail spools up; and better than that, you can hear the bypass valve routing air back into the intake track from the I/C. my buddy has the GFB 50/50 hybrid, and my intake sounds louder and better than his BOV

i think the only concern will be if i am leaning out too much, but the injen has the same diameter piping as stock, and a nice long straight section on both sides of the MAF; so i don't think it is affecting the A/F ratios too much. i got mine for 180 bucks, and it was like killing two birds with one stone: i got a sweet CAI, and i have the nice BOV sound, without a BOV. i haven't had any problems with mine and highly recommend it

btw, i'm also running the AVC-R set at 1.05 that, on the other hand, did yield a noticable difference...

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Old 07-27-2003, 07:10 PM
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until you are making over 300HP(crank) minimum, the stock airbox(w/snorkus removed) is NOT a restriction.

If you MUST have the bling, Perring and TurboXS short rams are the only two that DEFINATELY wont mess things up.
CAIs are touch and go, some have tourble some dont.
Keep in mind, many tuners will refuse to dyno tune your car with a CAI on it. There is a reason for it.
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Old 07-29-2003, 06:05 PM
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Yeah, stock airbox but I hacked the silencer on the lower belly or round part on the bottom towards the front so when you remove the fog cover, you have a scoop for a "ram air'" effect.
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Old 07-29-2003, 09:08 PM
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Originally posted by Scott@S-Squared
keep your stock intake, do the silencer box mod on it, get a good replacement drop in filter, and save your money for another mod that you will get good gains from.

intakes on WRXs do nothing. The most gains you will see is just from doing the mod and using a good filter in the stock airbox.

i did that after 2 intakes and couldn't agree more
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Old 07-30-2003, 02:43 PM
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Perrin, STI, That Green one.
I have heard of many dead MAF's due to K&N oil getting on them.
I would look at foam element filters and DONT overoil them
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Old 07-30-2003, 05:44 PM
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Originally posted by snushus
what would a good replacement drop in filter be?
I personaly use a K&N dropin, but its a little more expensive then some of the other foam drop-ins

I believe it was about $50-$60 new
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Old 08-19-2003, 09:51 PM
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I just installed a Green Filter to replace my aging K&N. It seems to be of better quality than the K&N.

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Old 08-20-2003, 07:29 AM
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I thought that new turboxs short ram is good because the maf is the same size as stock.
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Old 08-20-2003, 02:49 PM
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yeah the TXS one and the Perrin short ram are both good. But totally un necessary if you arent making 300+hp
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