AFTERMARKET AIR FILTERS

[gdolby]

Good day to all. I have a 99 superduty and am looking to put a aftermarket air filter on it. I would prefer a dry filter but any product that you have experience with would be appreciated. The most of my driving is on a farm with nothing but sugarsand. I had a K&N and kept finding dust behind it. Even with my factory I am finding some but no where near what I did with the K&N. take care and thanks ahead of time

[NYH1]

I was looking for air filters a few months back myself.  After looking at a bunch of different filters one thing that I kept reading about K&N filters was they do let a lot of air flow through them.  They also let a lot of dust and dirt flow through them. 

After doing some research (google and various talk forums) I went with Amsoil's Ea Air Filter. 

[Lloyd Smale]

heres my take on it. Go to an off road truck race and you will see that most of the guys there are running K&N filters. If they were as bad as some of the urban legands claim then they surely wouldnt be using them. they have to be used right though. You need to oil them properly and make sure there sealed properly. I K&N will no doubt flow better. No one argues that. Now if your in a dusty enviroment and you compare both fliters when they become very dirty youll find that a stock one will pass more dirt. As the stock filter plugs and your engine still needs the air its going to create alot more vaccum before the filter and is going to eventually pull dirt through. the K&N that flows better isnt going to create as much vaccum behind the filter. Bottom line is the K&Ns arent a miricle filter. In average conditions and if you replace your filter often theres not much differnce. Some vechicles need the extra air and will make a few more hp but thats rare. What i like is the ability to come home from a dusty day in the woods and to be able to clean my filter. If you put a factory type filter in your truck and replace it every 10000 miles your going to pass alot more dirt then i will with my K&n that can be cleaned every 500 miles. People tend to get cheap and dont like buying things like filters and push the envelope on how long the use them before replacing. Buy a k&n once and you can clean it often and it wont cost you anything. If your the type that just rides on the roads for the most part its not an issue as your filter will last anyway. But for vechiles that see alot of dirt id take the K&n style filters hands down.

[bull]

One thing you could try is a prefilter. Something like an "Outerwears". Most off road race vehicles use them over their K&N filters.

That should help reduce the sand getting past a premium filter. And besides, you probably have at least the same amount of crap trying to pass through your fuel injectors from the fuel tank on a regular basis. You would be amazed at the amount of sediment at the bottom of your fuel tank.

[Lloyd Smale]

I use an outerware cover on my K&N on my jeep and truck in the summer.

One thing you could try is a prefilter. Something like an "Outerwears". Most off road race vehicles use them over their K&N filters.

That should help reduce the sand getting past a premium filter. And besides, you probably have at least the same amount of crap trying to pass through your fuel injectors from the fuel tank on a regular basis. You would be amazed at the amount of sediment at the bottom of your fuel tank.

[gdolby]

Good day to all. Good point on the vacuam effect loyd I never thought about that. I am changing my factory filter every 3000 miles. The k&n that I had I checked it at 1000 and didnt like what I seen. I dont know alot about them so did I expect too much? I expected to clean it every oil change. Bull have seen those wraps your talking about. when you use them do you oil them as well?

[bull]

I believe the wraps or prefilters are used dry.  Checkout www.outerwears.com

www.outerwears.com

bull

[Lazermule]

If your Ford is a diesel, go with the aftermarket HD AIS retrofit kit that Ford had Donaldson design for that vehicle.  See your dealer, the whole new system (with a new battery tray system and box) is like under $200 installed.  It has the Powercore element which is advertised at 99.99% efficient.  I have had bad results with the washables as teh oil affects sensors and they are NOT efficient in all conditions, and when you add the prefilters, you are just adding restriction, heck just throw a baggie over it...LOL.  That powercore element has like 8x the amount of media as the average filter.


LAZER