Free airbox/fender thing mod - Subaru WRX Forum
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post #1 of 17 Old 10-24-2002, 01:46 AM Thread Starter
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Question Free airbox/fender thing mod

i keep hearing about it...and how good it is for someone w/ little cash.........but what do i do...how do i do it RIGHT???

somepeople talk abotu something in the fender....some in the airbox.......etc...

some say some power...others say a louder stock bov......

so if someone could help me....or just plain tell me its not worth my time.....anything would help so i dont just start ripping things apart looking for it....thanks

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post #2 of 17 Old 10-24-2002, 05:19 AM
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It's really a sound-only mod...dynos have shown that you don't gain any performance out of it, and maybe even lose some from it. In any case, you can find out how to do it right here:

http://www.scoobymods.com/forums/sho...p?threadid=113

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post #3 of 17 Old 10-24-2002, 02:00 PM Thread Starter
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thanks man

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post #4 of 17 Old 10-26-2002, 12:06 PM
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so u can actually lose power from the intake mod? cause i have an aem cold air and i did lose a lot of low end response, so if that silencer mod lost a little power also, wouldnt it be better than just to leave it stock with the silencer still hooked up?

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post #5 of 17 Old 10-26-2002, 01:41 PM
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Yep, from what I've heard (from Dan at Godspeed, TurboXS, Vishnu, etc.), the stock intake system is actually very good and you don't really NEED to change anything until you start pushing higher power levels (300+ awhp). I've got a Blitz SUS in mine and got it before I did any research...it works great with my custom-tuned unichip and other mods, but with the stock ECU, I could tell that I lost some top-end power with it.

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post #6 of 17 Old 10-27-2002, 01:22 PM
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verdugo, do u think that with the blitz sus filter, that might be sucking it a lot of hot air, or that will not matter u think since the air is heated once it reaches the turbo anyway, so with the stock airbox, should i just leave it alone with the silencer or take the silencer off? some peeps say u lose hp with the silencer off

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post #7 of 17 Old 10-27-2002, 05:34 PM
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Hot air is really a non-issue because like you said, it'll get heated up by the turbo anyway...plus our intercooler does most of the cooling.

As far as the silencer, try it and see if you like the sound...if not, just put it back. I don't think it makes too much of a difference either way.

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post #8 of 17 Old 10-28-2002, 03:00 AM Thread Starter
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i have noticed a tiny bit less lw end...but to me it seems to be spooling faster...so it makes up for it....i guess the only wayt would be to track test it

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post #9 of 17 Old 10-30-2002, 11:58 AM
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This same topic keeps coming up. The problem is we have too many different WRX forums and too much bad information going around. Simply removing the silencer is a bad idea. If you're going to do it, cut the plastic tubes from the top of the silencer and reuse them so that there is some actual ducting going into the fender area. Failure to do this causes a turbulent mixture of fender air and under-hood air coming into the airbox, which causes the car to run poorly.

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post #10 of 17 Old 11-05-2002, 12:47 PM
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Quote:
Hot air is really a non-issue because like you said, it'll get heated up by the turbo anyway...plus our intercooler does most of the cooling.
This is not very good advice. Hot air is an issue, most definetly with turbo cars... Why would they make cAI. Air temp has a lot to do with performance of our (turbo) cars. If you start with air that is cooler obviously your final TB temp will be cooler. Im not exactly sure, as Im still learning, but on dsm's air temp has a huge effect n power output
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post #11 of 17 Old 11-05-2002, 12:58 PM
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Quote:
Originally posted by candela


This is not very good advice. Hot air is an issue, most definetly with turbo cars... Why would they make cAI. Air temp has a lot to do with performance of our (turbo) cars. If you start with air that is cooler obviously your final TB temp will be cooler. Im not exactly sure, as Im still learning, but on dsm's air temp has a huge effect n power output
Every post I've seen on other forums regarding the CAI vs. short ram issue has pretty much proven nothing for either side...I'm just going by what's been said before. The one thing that just stands out to me is that on higher-powered turbo cars (Supras, Skylines, etc) you rarely see them use CAIs...if anything, you'll see a very short ram that's pretty much connected straight to the turbo. I'm no technical expert, but I figure there's got to be a reason for that.

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post #12 of 17 Old 11-06-2002, 02:59 AM Thread Starter
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i electrical taped mine to the fender thing...so i wouldnt get hot air.......zerosports has a like elbow tube that goes from the under hood intake thing to the airbox....but they only make it in carbonfiber and the carbon fiber is like $230......doesnt anyone know of just like a plastic piece someone makes?

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post #13 of 17 Old 11-06-2002, 02:59 AM Thread Starter
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i think its zerosports....

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post #14 of 17 Old 11-12-2002, 02:39 AM Thread Starter
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no....its prova

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post #15 of 17 Old 11-13-2002, 03:56 PM
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Quote:
Originally posted by showcasewrx
so u can actually lose power from the intake mod? cause i have an aem cold air and i did lose a lot of low end response, so if that silencer mod lost a little power also, wouldnt it be better than just to leave it stock with the silencer still hooked up?
If u already have a cai it shouldnt matter cause u dont use the silencer anyways. And i thought the intake silencer had to go in order to install the cai
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