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Old 01-28-2008, 07:08 PM
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K&N Filter-Good or Bad

I'm sure this has been discussed a few times but I'm wondering what people think about these. I have replaced two of my vehicles filters with K&N filters. The first was our Montana van, ran the filter for a couple years and sold it. No problems. Just went to get a new filter for my Mustang and the K&n was double the paper Fram so I grabbed it.

Any horror stories out there?

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Old 01-28-2008, 07:19 PM
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No horror stories here. They don't filter as well, but they flow more. I don't put one in my diesel trucks due to the sensitivity of the turbos. I haven't personally seen any damage to compressors from using a K&N but I can imagine even tiny dust particles would slowly sandblast them over time so I just don't.
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Old 01-28-2008, 08:25 PM
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good and bad

K&N filters are modern oil bath filters. I have them in most of my cars because I don"t mind cleaning and oiling them as needed. Like anything else they need servicing. Only problem I have encountered is with vehicles with the air flow sensors downstream of the filter. (most Fords and some others).
The oil tends to contaminate the sensor and causes all kinds of driveability problems. Older carbureted vehicles don't seem to have any problems. However, paper air filters flow well enough for most cars and are fairly cheap to replace. K&N is the hands down winner in looks!
John
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Old 01-28-2008, 10:23 PM
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Highly over rated and over priced. Amsoil is a far superior filter.
Vince
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Old 01-28-2008, 11:08 PM
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K & N filters are the only filters that I ever use. If you get oil contamnation of down stream sensors you are using too much oil. The old oil bath filters were really a type of cyclone filter. The sharp turn at the bottom of the canister flung the dirt into the oil. Then, any dirt left was filtered out by the oily metal excelsior on the way to the carburator.
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Old 01-29-2008, 05:48 PM
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Quote:
Originally Posted by 302 Z28
Highly over rated and over priced. Amsoil is a far superior filter.
Vince
Somebody bumped there head theres a reason there used in every high performance application! there the best in every way, flow durablity etc, you do have to keep them clean but they speak for themselves if you have ever seen a realll comparison. amazing product.
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Old 01-29-2008, 07:57 PM
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I really like them in my daily drivers, easy to clean. I wish I could keep track of my mileage better to know if they help but I feel they do. I was thinking that you would really want to stay on top of them in a high performance application. I agree they must be good cause they (or a variant from another manuf) are in all high performance apps.
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Old 01-29-2008, 09:31 PM
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Quote:
Originally Posted by PRO 48 fleetline
Somebody bumped there head theres a reason there used in every high performance application! there the best in every way, flow durablity etc, you do have to keep them clean but they speak for themselves if you have ever seen a realll comparison. amazing product.
The reason is they give them to the big name guys so morons can see the logo on their cars and say "gee they use them, they must be great". Any independent tests have shown they are little to no better than a good paper cartridge filter.

Vince
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Old 01-29-2008, 09:31 PM
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oops, Internet slow tonight

Vince

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Old 01-29-2008, 09:37 PM
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Hey Vince, you gonna delete your duplicate post or do you want me to? LOL

Mark
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Old 01-29-2008, 10:27 PM
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So if they aren't better how come the little ping pong ball in the store display goes higher with the k&n........lol
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Old 01-29-2008, 10:35 PM
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Quote:
Originally Posted by 302 Z28
Highly over rated and over priced. Amsoil is a far superior filter.

Does Amsoil make toilet paper?? Apparently everything they make is superior to similar items on the market, so I assume their TP would be too??? Always looking for better personal hygiene.................
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Old 01-29-2008, 10:38 PM
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You guys keep buying them and keep telling yourselves that the exorbitant price is worth it.

Vince
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Old 01-29-2008, 10:45 PM
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Quote:
Originally Posted by speede5
So if they aren't better how come the little ping pong ball in the store display goes higher with the k&n........lol
The easiest and cheapest way to do that is to make the filter media more porous! The air and dirt goes through it much faster. Airflow is only half of the story. The filters ability to flow AND filter is important.

Don't get me wrong, K$N are ok filters but are not THAT great! They do flow a tad more then most but a quality PAPER element filter will filter dirt better, allbiet not by alot.

Lets not let this get into a whizzing match on filters, it's a waste of time and energy and usually ends up causing grief among the members. If you like them, by all means use them.

Mark
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Old 01-29-2008, 10:56 PM
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Quote:
Originally Posted by tdkkart
Does Amsoil make toilet paper?? Apparently everything they make is superior to similar items on the market, so I assume their TP would be too??? Always looking for better personal hygiene.................
Is that an honest question?

I do not believe that Amsoil makes toilet paper. Their bypass filters are a spin-on type with, I believe, a string wound filter media. I get my TP directly from Frantz, although Scott single ply works well too.

Most people who slam Frantz, or ANY bypass filter, do so because it's new to them and they have not done any research on them. They have been around longer than I have and even, for a time, had FAA certification for aircraft. That is NO easy thing to accomplish. Most people just don't want to mess with them, but they do work and work well.

Amsoil has excellent products, most, if not all, are light years past the regular stuff on the shelves. Their biggest problem is cost. There is almost no break on prices and for me and lots of others, even "signing up" as a distributor did not get me enough break to make it even close to being affordable on 3 vehicles.

Mark
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