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Old 12-22-2010, 01:22 AM   #1
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k&n air filter, vs k&n air intake?

Okay, so ive been doing a little research about the k&n air filter. Before i had my jeep i was riding around on a motorcycle, (05 zx6r), and installed a k&n air filter on it. It was really easy, all it was is a filter that replaces the stock paper filter. I'm assuming that on a jeep wrangler it is the same concept? instead of a paper filter you have the high performance filter instead? So an air intake would replace the stock set up and introduce the cone looking filter? Correct me if im wrong.

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Old 12-22-2010, 01:25 AM   #2
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keep the stock one. K&N lets dust get thru.

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Old 12-22-2010, 01:29 AM   #3
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You can go one of two ways.

One is to replace the air intake and use the K&N filter, which is really a waste of money as the stock intake is more than adequate for the Jeep.

Two you can get a K&N panel filter that is a drop in replacement for the stock air filter. I went that route and I like it. You will find some that like the K&N some that don't I have used them in my vehicles for years and never had an issue.
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Old 12-22-2010, 01:29 AM   #4
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Yes, but save your money... even ignoring the above (which is true), our intakes were designed to flow more air than the engine can bring in, so adding higher flowing filters/cold air intakes will do nothing to improve performance.

I used one in my old truck...no gains on the butt dyno, but since I switched from a complete OEM intake system to an open element intake on top of the throttle body, it did make a cool WHOOSHING noise when I floored it...and it hissed super loud on cold mornings until the engine was warm and the IAC was mostly closed (quite annoying).
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Old 12-22-2010, 01:38 AM   #5
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You can go one of two ways.

One is to replace the air intake and use the K&N filter, which is really a waste of money as the stock intake is more than adequate for the Jeep.

Two you can get a K&N panel filter that is a drop in replacement for the stock air filter. I went that route and I like it. You will find some that like the K&N some that don't I have used them in my vehicles for years and never had an issue.
So im guessing you ditched the original paper filter and replaced it with a K&N air filter, that drops in with no modifications? (think they are around 50 dollars?)I am wondering because when i bought the jeep i replaced the orginial air filter with a cleaner one, and i felt a huge improvement! the old filter was grey and very dusty. I was thinking if i felt the difference there, what might a brand new K&N air filter do. Did you feel the difference? or eh nothing worth 50$?
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Old 12-22-2010, 02:01 AM   #6
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I have a K&N air filter and can confidently say that besides a cool wooshing noise there is really no difference. Dust does get into the tube, but not terrible considering that all I do is sand. My TB washes have come back clean.

However, there is one benefit to the short ram intake that people don't mention - it cleans up your engine bay



It takes literally two screws to remove the entire unit.
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Old 12-22-2010, 05:14 AM   #7
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A cool wooshing noise is what everybody needs. It's good not being 15 again.
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Old 12-22-2010, 05:35 AM   #8
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A cool wooshing noise is what everybody needs. It's good not being 15 again.
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Old 12-22-2010, 06:50 AM   #9
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don't waste your money on the K&N BS. Run an AC Delco or Wix paper filter, or do a Windstar cowl intake mod.

read this: http://www.jeepforum.com/forum/f9/fa...intake-558437/
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Old 12-22-2010, 09:11 AM   #10
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X4 on not subjecting your engine to the added dust, silica, etc. that K&N air filters are well known to pass far more of than other filters do. Filter tests have confirmed that the K&N's filtration ability is a joke.

Besides, it is also well known that the TJ's factory air intake system was designed to be completely non restrictive. Installing an air filter that claims to "breathe better" won't help the TJ's performance in the least. I used to run a K&N until I discovered how much dirt was getting past it so I went back to the OE filter box with an AC-Delco paper air filter and there was zero performance difference.

I'll run another K&N air filter when Hell freezes over.
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Old 12-22-2010, 10:16 AM   #11
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Quote:
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X4 on not subjecting your engine to the added dust, silica, etc. that K&N air filters are well known to pass far more of than other filters do. Filter tests have confirmed that the K&N's filtration ability is a joke.

Besides, it is also well known that the TJ's factory air intake system was designed to be completely non restrictive. Installing an air filter that claims to "breathe better" won't help the TJ's performance in the least. I used to run a K&N until I discovered how much dirt was getting past it so I went back to the OE filter box with an AC-Delco paper air filter and there was zero performance difference.

I'll run another K&N air filter when Hell freezes over.


If you've already changed your mind, you can just paypal me the $50...
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Old 12-22-2010, 10:20 AM   #12
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Good one.
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Old 12-22-2010, 11:22 AM   #13
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any foam filters out there? Most bikes and ATVs have them and have prooven to breath as good as a K&N but have MUCH better filtration.

If not foam, any recommendations?
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Old 12-22-2010, 11:29 AM   #14
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Foam isn't that good either, I had both foam and an Outerwears prefilters over my K&N before I dumped my K&N to go back to a paper element air filter. Just stick with a paper element air filter, they have such a huge surface area that they breathe fine but more importantly, they keep the harmful crap out of the engine.
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Old 12-22-2010, 11:40 AM   #15
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I dont mean Foam slip on, but a foam filter all together, with 2 different compounds to filter dirt. I have never had any issues with them not filtering well. your problem was probably since it was a slip on it was just a pre filter for larger particles, but lets small stuff get threw for the finer parts of the filter to grab, but your problem was the fine part of your filter was a K&N which is obviously not good at grabbing small dust.
so it was like running two large particle filters without the fine dust filter to go with it. all the pre filters do is help keep the good filter from getting clogged quickly.

But Im glad to see papers are not a bad way to go, cheap, no maintainece, just replacement. makes it simple.
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Old 12-22-2010, 11:45 AM   #16
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I was so desperate to get rid of the K&N that for a while until I could get another OE style air filter box, I installed a foam Truefilter. It was a much better air filter than the K&N but still not as good as my present AC-Delco. Truefilter went out of business earlier this year though.
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Old 12-22-2010, 11:50 AM   #17
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oh, i see. thanks for the Info. The dealer is putting a new filter in now, so once that is bad ill get myself an AC-Delco. thanks
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Old 12-22-2010, 12:05 PM   #18
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Let the K&N debate begin
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Old 12-22-2010, 12:12 PM   #19
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Does it ever stop.
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Old 12-22-2010, 12:13 PM   #20
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Doesn't seem like it. Sorta like the Coke/Pepsi debate or the Ford/Chev one.....
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Old 12-22-2010, 12:19 PM   #21
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Im a member of a 3 wheeler forum and the debate comes up all the time. But all in all we agree they stink, it seems to be the way here too.
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Old 12-22-2010, 12:24 PM   #22
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My guess is that in a couple of days someone is going to ask once again.

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