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Old 06-15-2011, 12:58 PM   #1
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for all you with stock foci

take out your airbox resonator, you won't be disappointed.


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Old 06-15-2011, 01:36 PM   #2
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So ahh, can you describe what I'll be removing? Added sound or what?
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Old 06-15-2011, 01:37 PM   #3
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Noticeable sounds?
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Old 06-15-2011, 01:47 PM   #4
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Airbox resonator? I guess Im not stock, I have an intake installed already....
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Old 06-15-2011, 02:07 PM   #5
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Lol did this the other day. Only thing I am wondering now is, will dirt get in easier now? Should I do something with duct tape?! :D haha

But seriously I'm worried haha. I put some electrical tape on it the day I did it but figured I didn't want it screwing something up so I just took it back off like half an hour later

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Old 06-15-2011, 04:19 PM   #6
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lol i guess i did leave this kind of point blank.



I was talking about the resonator that sticks out of the airbox on the right side (that i had no clue what was for to begin with).

this is where i learned it from
resonator removal

once i got it off, i turned the car on. nothing really sounded different. i went for a drive and put my foot down. much deeper louder tone than i expected. it put a big smile on my face. the great thing about it is it only gets loud when you give it the beans. even at half throttle it sounds louder. Joshamo does bring up a point though. there is a big hole on the side of the airbox now but it doesn't seem to cause a problem because its pretty much covered up by everything. and there's a little hole at the bottom on the airbox that lets water flow out. plus the air filter is above the hole so dirty air doesn't go through. i think it really opens it up. i could be wrong though. my mpg meter actually increased from 200 miles to empty to 215. so far so good i guess. seriously, try it out. if your not feeling it, put it back on. it takes 5 min. and it gave me the biggest smile on my face
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Old 06-15-2011, 10:56 PM   #7
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Its a bit different on mine (guessing you have a duratec, I have the zetec haha I am new here still) mine has a bit more open space but yeah it should be fine =)

I changed my fuel filter the day after doing this and it was super gross (cut it open just to see) and saw a 2 mpg increase. I dont know if its one or the other but yeah I am happy.

Plus I did step on it quite a lot this tank just to hear the sound and still got the 2 mpg lol.

Will measure it again this next tank to see if its a consistent 2 mpg.

EDIT: I just saw you have a 2011 so that would explain the difference.

Last edited by Joshamo; 06-15-2011 at 10:57 PM. Reason: Noticed something.
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Old 06-16-2011, 07:52 AM   #8
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yea. i'm assuming its because there is more air finding its way in. especially with that hole. car runs pretty smooth for the most part. it doesn't vibrate as much as it did before if i put it in 5th at 1500 rpm with the peddle to the floor (before it was funny to listen to hehe). it hasn't skipped a beat and i'm still loving this quite when you cruise, loud with the push of a throttle action going on. not saying the car is any quicker. it just feels smoother
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Old 06-16-2011, 08:33 AM   #9
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I noticed that dumb thing under there, ok, I'm taking mine off :P
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Old 06-16-2011, 08:37 AM   #10
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lol let me know what you think. i like second opinions
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