ya. just dont go driving around in any dusty places

 

why risk it.
that is just plain ~~~~~~and nuts too

 

Good question

 

leave the filter in. its not just dust you haveto worry about. i find lots of stuff in airboxes under filters. anything from tree leaves to huge dead bugs. dont want that in your engine.

 

I found a Sparrow once - Without a filter - that would have been interesting ..

 

Driving around without a airfilter is like playing Russian Roulette, you never know when your engine will suck in something & go BOOM!.........

 

Sheesh - cough up 13 bucks and go buy a new paper filter for now! That's what a Napa Gold costs and it's as good as any. Sucking dust in will cost you a lot more than that in the long run.

 

for my 77 from autozone i payed 210 out the door if i rember right its listed at like 230 but i had my 20 bucks saved up. i noticed a diff when i frist did my intake. alot of people on here liek there AF1's but i got the K&N it did just what i wanted noticable HP and gasmilage i think it added about 30-40 more miles per tank! i dont have a tuner but the K&N was worth it. the hardest part of the install for me was taking the MAF out of the stock intake houseing the whole thing took 45Mins.

 

and this doesnt suck anything in....look in my gallery for the pic of under my hood after i went threw the mudd my CAI is caked in mudd i took the filter off and just a small splatter of mud was on the shiny pipe but it didnt even make it like an inch from the MAF...i donno were it came from but the open fitler held up from all the mud/water im still digging mudd outtf my filter now but i just fliped it over so the "sweet spot" had more open filter

 

Thanks guys but as far as the Air Force one and the K&N which one sounds better. Or do they all sound the same Iam looking for the best gain and the loudest one not really so much the look under th e hood

 

Get the AF1 - The 3" if you still have the sh^ty factory tune.

Get the AF1 - The 3.5" if your have the much better Troyer tune.

K&N has a fitting correctly issue with some models - IMO , it can't be trusted.

The 2005 f150 stock system is fine for the tune you have. You don't need an intake on that model yet. The 04-present models are seriously under-tuned from the factory . Your better off getting tuned first . Tunes for your truck can be easily acquired via -Troyer Tunes.

If I had your model for the very best outcome and noticeable gains , I would do this all at once.

Here's what I would do -

Order Tunes , AF1 3.5", Magnaflow Cat Back System. Do all this thru Troyer and do it all at the same time so that you'll be tuned according to your mods.

You'll sh^t your pants when you hit the pedal after doing this exactly as said.

You really don't need an intake yet , you won't be impressed.

 

My truck is an 2001 supercrew with the 5.4T....and if I recall right my series 77 intake was 155$ shipped.

 

the 3.5 requires tuning-period!-phil