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Unread 02-21-2006, 04:39 PM   #1
05F150
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Free air intake

This is an ol trick that has been created by fellow stang owners and f-150 owners. What you do is disassemble the air box. Take a 3/8" drill bit, of course when you do this remove the air filter as well, and drill as many holes as possible. This should create a " swiss cheese" effect in your box. Put everything back together and whalla! Free intake. You just increased your air flow to about 85% and it has been dyno proven to work. My buddy did it in his stang and got about 12 hp to the wheels!!!! He also added the K&N air filter as well and it definitely helped him out.

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Unread 03-27-2006, 10:58 AM   #2
Mr. Tobes
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Nice. Now all I need is an airbox.
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Unread 04-03-2006, 08:38 PM   #3
drew01929
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I have been doing this to dirtbikes for years, and it usually works pretty well.
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Unread 04-03-2006, 09:39 PM   #4
Andrew F
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Why is this posted twice? It's hasn't even made it to the second page yet.

http://www.jeepforum.com/forum/f46/free-air-intake-241677/
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Unread 04-03-2006, 11:21 PM   #5
dr_phatcity
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Didn't someone complete a whole write up about how Jeep's are not starved by air intake and don't benefit much from changing the air intake dynamics

Also, if you are offroading your jeep and are drilling holes in the air filter -- don't you have to get TONS of dirt and dust in there -- sounds like a bad idea to me.
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Unread 06-03-2008, 10:53 PM   #6
zacjeff
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just take the whole box out and put in a cone filter
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Unread 07-22-2008, 01:56 PM   #7
4jeepers
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I am not positive but would this modification pass a visual inspection for smog in a state like California?
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Unread 07-22-2008, 04:54 PM   #8
flatlander757
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Sounds like a good way to suck up water or mud
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Unread 07-23-2008, 06:44 AM   #9
SOLOLUCKY
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I was thinkin the same thing..mud, water, dust, welcome to my airfilter.
and also it's hot, underhood air. Not the best intake air...ya want COOL air. Thats whay it's called a "cold air intake".
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Unread 07-23-2008, 06:47 AM   #10
Luckyduck
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I ran a bit with no air filter or piping what so ever just an open throttle body and noticed no change.
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Unread 07-23-2008, 07:01 AM   #11
Diehard
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Not that I agree with this, but the area the holes would be drilled is below the filter so the air still would be filtered, but the filter would need to be changed more often, and this mod would increase the chance of more water to be sucked in if the box gets under water.
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