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I would like to try and keep my car stock looking under the hood So I wa wondering if there are any airbox mods that I can do to get it breathing better besides a drop in K&N? Or should i just get the CAI?
 

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I'm not sure how the 2008's are set up under the hood but I know with my 2005, I made my stock intake into a CAI and it still looks stock when you pop the hood...the only way you would b e able to tell that i did something to it is if you look under the car.

I just clamped on a cone filter on the bottom of the air intake resonator...i haven't had any problem siwht it. It is noticibly better than just the stock intake and it sounds awesome
 

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Freeskiing Fanatic!
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could could remove the filter from the airbox and take out the vacuum box, then put a cone filter on the bottom of the straight intake tube. I believe that is the stealth air intake, but i could be wrong.
 

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put a K&N drop in filter in your car... it gets like 3 to 4hp, wheres the SRI gets like 5 to 6... so your not missing much.
 

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honhon you're full of good info.[headbang] I'd add to your rating, but I don't know how...not that you need it ... too bad my limited ability as a mechanic keeps me from actually using the stuff... oh to have all the tools necessary and some training... [bigcry]
 

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BodyKits=PantiesDrop
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below his avatar, click on the blue number 220 next to FF Reputation and follow the directions, its easy! [thumb]
 
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drill holes in the bottom of the box or cut it out completely and put a drop in k&n filter in it
 

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If you have an '08, install a K & N drop in and take the air box resonator off.
 

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I would like to try and keep my car stock looking under the hood So I wa wondering if there are any airbox mods that I can do to get it breathing better besides a drop in K&N? Or should i just get the CAI?

One thing you can do is to remove the sound deadening tube on the side of the air box - lets more air in and gives it a bit of a howl when you step on the pedal a little harder. I am not sure if this adds any to the performance, but it sounds cool.
I did this accidentally when I removed the air box to give room to install the big 3 grounding kit. I pulled the tube off the side and "forgot" to reinstall it.
I am also waiting for a CAI for the 08s.
 

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I am not 100% sure of the actual hp increase in the focus... but I know that on my 93 5.0 stang, removing the air silencer... results in 6 free hp - dyno proven.
-the 1st mod I ever did on it :)
 
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