7.3_IDI_guy
Currently ******'
NO. your stock air filter has more surface area then the one he used so you would be getting more air flow and if you have all the stock intake duck work you are getting COLD fresh air from behind the grill. If you want to mod anything just put in a cleanable air filter of your choice
Factory anything sucks. The truck will never meet its full potential with all that restrictive factory junk. I say build it as much as you can if you know what your doin.