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Old 08-04-2011, 08:12 AM   #1
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K&N Intakes ???

hi Jeepers ...

just I wanna ask you what are the differences between these intakes?
and who is best one for my 09 SAHARA ?

1. K&N 57 Series FIPK Performance Intake
2. K&N 63 Series AirCharger® Performance Intake
3. K&N 77 Series High Flow Air Intake

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Old 08-04-2011, 09:24 AM   #2
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K&N is heavily frowned upon here
OEM..... OEM.....OEM

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Old 08-04-2011, 09:32 AM   #3
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There's no need for one other than the noise they make
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Old 08-04-2011, 02:37 PM   #4
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Save your cash and stick with a good paper filter with a JK unless, as was said, you want to hear a bit more engine noise. You're not going to get any more performance out of it and if it's over oiled you're going to cause more problems.
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Old 08-04-2011, 02:56 PM   #5
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An oiled filter, like K&N, is bad news bears. Stay away.

A dry filter--like this AEM--is fine. Combine that with a low cost intake--like this one from Rusty's--and you'll get a handful of horses at higher RPM for $90. It'll also sound cool.

For $90, I'd do it. For $200+ like a lot of the "fancy" intakes sell for? No way.
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Old 08-04-2011, 07:53 PM   #6
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MTH; is there someplace that has scientific evidence that the K&N oiled type are actually bad?? What I can find on the 'net is mostly what people on both sides of the issue BELIEVE because of something they were told by someone else. My 2010
Sahara that had a few miles on it when I bought it had a K&N on it. I myself wouldn't have put it on; but if you can show me the science; I will ditch it for something else.
For many years, equipment that worked in dirty conditions relied on an oil bath air cleaner that was a real pain to maintain properly, but was very effective. Before this goes any further, I know that those engines did not have all the electronic sensors that todays engines have. Thanks. Don
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Old 08-04-2011, 08:21 PM   #7
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The thing about it is these performance filter even state their filtration results and most I seen shows oiled filters as having the least filtration ability. So they are basically allowing more dirt into your engine. The thing about modern engines is the computer pretty much regulates air flow and if the air is restricted or increased the computer will increase fuel or decrease to compensate as to maintain a precise mixture
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Old 08-04-2011, 08:28 PM   #8
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Change your oil, install your favorite air filter, drive around on dusty roads with someone in front of you to kick up some good dust, get your oil analyzed, see how much dirt is in your oil.

As a side note: if your stock filter setup is good then it does a pretty good job of keeping dirt out of your oil…
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Old 08-04-2011, 08:34 PM   #9
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Heh Heh, FRAM ribbed dry filter $13 bucks-

Change every oil change/or inbetween (I do)

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Old 08-04-2011, 11:36 PM   #10
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Quote:
Originally Posted by JEEPDON
MTH; is there someplace that has scientific evidence that the K&N oiled type are actually bad??
I don't know if you'd call it scientific, but there was a link posted awhile back to a guy who decided to do his very own long term air filter test. Might have been on a Miata, IIRC.

In essence, he modified his intake tube to accommodate two filters--a paper filter farther back in the tube, and the test filter mounted normally. Every two months or so he'd switch out the various test filters and photograph any residue on the paper filter. The idea being that the least effective primary filters would let the most dirt through to catch on the paper.

Oiled filters were the only ones to generate oily paper.

He also kept track of his "butt dyno," and noticed no difference from oiled to dry. More dirt on the paper however did coordinate with more butt dyno results. In other words, more air equals more power, but also more particulate.

That's the best I've seen.
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Old 08-05-2011, 07:43 AM   #11
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Heh Heh and we know, that all the scientific data in the automotive world---is USELESS !!


Quote:
Originally Posted by MTH View Post
I don't know if you'd call it scientific, but there was a link posted awhile back to a guy who decided to do his very own long term air filter test. Might have been on a Miata, IIRC.

In essence, he modified his intake tube to accommodate two filters--a paper filter farther back in the tube, and the test filter mounted normally. Every two months or so he'd switch out the various test filters and photograph any residue on the paper filter. The idea being that the least effective primary filters would let the most dirt through to catch on the paper.

Oiled filters were the only ones to generate oily paper.

He also kept track of his "butt dyno," and noticed no difference from oiled to dry. More dirt on the paper however did coordinate with more butt dyno results. In other words, more air equals more power, but also more particulate.

That's the best I've seen.
--Without the "Butt Dyno"-for the INDIVIDUAL !!

Don't ya know/can't ya tell

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Old 08-05-2011, 10:07 AM   #12
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I installed the K&N 77 Series High Flow Air Intake because my brother swears by his in his Wrangler, but I haven't noticed squat. It makes a slightly more robust sound but doesn't save on gas nor do I feel any of the extra horses as K&N's research claims I should.

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