A guy on mymustangsite.com said to TAKE A 3 INCH HOLE SAW AND CUT OUT THE FRONT AND UNDERNEATH THE AIR BOX ,ADD A K&N DROP IN FILTER AND IT WILL GIVE U ABOUT 12 RWHP. HE SAID HE DID IT AND U CAN FEEL THE POWER . THERES A PERSON ON THE SITE SAID SHE COULD TELL A BIG DIFF. IN HER HORSES!!!!!!!!! WHAT DO U THINK .

 

well, does sound a bit dodgy to me, sounds like something I might have done when I was a teenager! LOL Well with theres new mustangs everything is electronic so when you fiddle with the air intake it can reel havic with preformance. When I upgraded my 2005 GT, when you add an intake you have to retune the computer. I would spend the money and buy the proper tuner and intake upgrade. At the end you have a great looking kit that you can remove one day and put the original undamaged parts back on. But thats just my opinion.

 

I would be afraid of too much air in the intake.

 

I would not damage your factory airbox if I were you. Just buy a CAI and put your airbox aside. It takes about 15 mins to install a CAI.

 

The Saleen w/ 475 HP kit cuts out the bottom of the airbox for more air volume.. It works!!