What air filter do you use?

[lovemachine]

What air filter do you guys use in your vehicles?

Is it really worth buying the "cleanable"'filters such as K&N?
Or is stock paper better?

 

[tyler34]

for every 1000 people saying K&N filters are worth it you have 1000 saying they aren't. I have a drop in K&N on the jeep and the first few days the butt dyno felt the difference. I feel it only really helps overall if your upgrading the rest of the intake and exhaust system.(which I have) I'm guessing your putting it on a 4.0?

 

[tyler34]

forgot to ask, what are you wanting it for? HP? mileage?

 

[85t5mcss]

PITA to clean because they take a while to dry. IF u over oil it u can/will mess up a MAF. Personally I like them for Hi-Po cars with engine/exhaust/intake/rear end work. But for stock vehicle no real NEED. Up to u. The green part of u may say reusable since less trash being generated, but keep a spare in the garage so when u clean it, u have something to put in there if u need to drive it. Use oil sparingly, u can always add more if needed.

And K&N is good, not real sure about FRAM Airhogs. Have 1 in my truck, but came that way.

 

[lovemachine]

forgot to ask, what are you wanting it for? HP? mileage?

Maybe both? I just know I don't have the money to put in an air intake system.

The only bad thing I hear about KnN is they let a lot of dust get in.

I've read a lot about AC Delco too.

 

[Suprtek]

If you're lazy like I am, you'll actually end up losing performance in the long run because it won't get cleaned and serviced often enough. Most of the quality aftermarket filters work very well, but only IF they get cleaned and oiled regularly.

 

[45fan]

Depending on the cost of a paper filter, K&N can be cheaper in the long run too.
When I worked at a parts store, I sold many K&N s to people not so much as a horsepower increase or mileage, but to save them from endless $30 paper filters that their cars (or truck) called for.
The added power and fuel mileage was just frosting on the cake for them.

 

[SideArmed]

I have K&N in both my vehicles. Not sure if they really add much in the way of performance or not, but I did notice a slight increase in MPG in my car when I put it in. Plus I have recouped the cost of it by not having to replace it on both the car and truck already.
YMMV (literally!)

 

[85t5mcss]

IF the reason u r asking is because of Fuel Economy (who isn't) then verify u have the correct tire pressure, clean the throttle body, and clean the MAF if so equipped. Small details that are easy and inexpensive but do help.

 

[christman]

I have a K&N in my van...That said, I haven't' cleaned it once in 2 years...So who knows.

 

[gunman41mag]

What air filter do you guys use in your vehicles?

Is it really worth buying the "cleanable"'filters such as K&N?
Or is stock paper better?

K & N will let dust get thur & damage your engine FACTORY filters cost to much I use a AFE PRO DRY 7 in my 2008 F-250 6.4 DIESEL SUPERDUTY

 

[spainy79]

I bought Airaid CAI's for both of my vehicles ('Hoe in '04 and Dodge in '05). Still using the same filter for both of them. Having said that I doubt I'll ever buy another CAI but a reusable filter is not out of the question.

 

[grimor]

The way most people instal K&N filters, they're just hot air injection systems. If you do it right and put it in a box with a scoop hood, yes they are worth it.

 

[85t5mcss]

The way most people instal K&N filters, they're just hot air injection systems. If you do it right and put it in a box with a scoop hood, yes they are worth it.

Uh, u r referring to FIPKs, factory K&N replacements use the same restrictive factory stuff. I agree with the assessment of FIPK sucking hot air, though. Tradeoff for flow vs. heat. Makes it sound better, though. Cold air ram effect is the way to go.

Myself, I like the WS6 Ram Air hoods. But they don't look good on too many vehicles.

 

[grimor]

Uh, u r referring to FIPKs, factory K&N replacements use the same restrictive factory stuff. I agree with the assessment of FIPK sucking hot air, though. Tradeoff for flow vs. heat. Makes it sound better, though. Cold air ram effect is the way to go.

Myself, I like the WS6 Ram Air hoods. But they don't look good on too many vehicles.

this is what I think of when people say K&N

 

[CTC B4Z]

AMSOIL DRY EA

 

[eldirector]

The washable filters only work when properly oiled. Otherwise, they let small stuff right through. I had one in my old truck, and it was fine. Just took too long to dry when I cleaned it. For the same cost, I can put Napa Gold filters in my vehicles for a couple of years or more.

I do have a washable K&N knock-off on my off-road jeep, with a nylon prefilter. It gets covered in mud/dirt/sand and sprayed with water. Its nice to be able to just clean it instead of replace it after every few runs.

BTW: The stock Jeep air box is not nearly restrictive enough to need replaced. At most, pull the small air horn off and replace with an elbow the diameter of the airbox inlet. Its more important to keep water and debris OUT than get more air IN.

 

[Colt556]

K&N CAIs on my cars.

 

[darkkevin]

AMSOIL DRY EA

definately this, depending on application, DRY filters are the way to go and a MUST in forced induction (turbo or supercharged) vehicles. and as previously mentioned in computer controlled vehicles oiled filters play hell on MAF sensors.