For all you K&N haters...
Nov 7, 2007 | 08:37 PM
#1
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From: Tuscaloosa, AL
For anyone running a K&N filter...
after reading so many posts on here about people downing K&N filters, i figured i'd say check out this link that shows a test of some of the most popular airfilters on the market today, including K&N and Amsoil filters. you might be surprised at the results...
http://www.bobistheoilguy.com/airfilter/airtest3.htm
http://www.bobistheoilguy.com/airfilter/airtest3.htm
Last edited by mikes19984x4; Nov 7, 2007 at 09:53 PM.
Nov 8, 2007 | 06:30 AM
#3
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From: Tuscaloosa, AL
haha, i know. the results suprised me too. but i wanted to show everybody that the Amsoil filter actually did somewhat worse than the K&N. only saying that because so many people on here dis K&N and say throw them away and get an Amsoil...
but i wanted to show everybody that the Amsoil filter actually did somewhat worse than the K&N. only saying that because so many people on here dis K&N and say throw them away and get an Amsoil...
Nov 8, 2007 | 06:36 AM
#6
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From: Tuscaloosa, AL
well i ran the oem fram paper filter and it was okay, but i decided to get the K&N, as we had an extra recharge kit at the house. but every time i go home from college (about 230 miles), i average 22 mpg doing anywhere from 55mph to 80 mph on the interstate. if i got any mpg increase, it was minimal, as i only bought it so i would never have to buy another one again...
Nov 8, 2007 | 06:38 AM
#7
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From: Oklahoma State
That's the old style Amsoil filter, they have a whole new filter medium now that doesn't use the old oil entrapment method anymore. It uses nanofiber technology: https://www.amsoil.com/storefront/eaa.aspx
I do agree with his conclusion though:
BTW, I'm using a stock OEM Toyota air filter and it flows well enough to make 10 lbs of boost.
I do agree with his conclusion though:
Well there is a clear pattern on filtration ability compared to both flow and the type of filtration media used. The "high performance" cotton gauze and foam filters do not filter as well as some have claimed. I actually received an e-mail from K&N stating their filters filter within 99% of the OEM filters. This may be true, and 1% may not sound like much. I contend that 1% over many miles, may be important. Really, it is up to each individual to decide. The poorer flowing filters, remove more particles, and the better flowing filters remove less particles. If you think about it, that conclusion passes any and all common sense tests, so it is not surprising. There are many that will be shocked by the results, that should not be though. I've used high performance filters in the past, and I might again in the future. At the same time, I know that the stock OEM type filters perform very well in filtration and don't inhibit flow nearly as much as some think.
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Nov 8, 2007 | 06:40 AM
#8
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From: NC
EXACLTY.. btw you should change your oem filters every 10k miles due to the poor filtration that tacomas and 4 runners have.. keep an eye on the pcv and gramet (sp) thats around it.. if its caked with crud clean but be careful that doesnt fall into the motor.. this is what i was told by a guy that runs a lab that tests oils.. name is terry dyson
Nov 8, 2007 | 06:44 AM
#11
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From: Oklahoma State
Nov 8, 2007 | 06:53 AM
#12
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From: Montreal, QC Canada
......although dyno pulls in the past have also shown Amsoil to beat K&N for flow too.
Nov 8, 2007 | 08:05 AM
#13
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From: COTKU,Ontario,Canada
Very interesting and well done tests... Personally I still like my K&N and have had no issues with it at all... but then I have a AFM not a MAF so no wire issues to think about... also intake has always been clean enough to eat out of..
edit: thanks for the correction MTL 4runner
edit: thanks for the correction MTL 4runner
Last edited by aviator; Nov 8, 2007 at 09:22 AM.
Nov 8, 2007 | 08:09 AM
#15
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From: Montreal, QC Canada
Nov 8, 2007 | 08:10 AM
#16
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From: Montreal, QC Canada
that's right! my bad... editing my original post
Last edited by aviator; Nov 8, 2007 at 09:21 AM.
Nov 8, 2007 | 08:53 AM
#19
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From: Orlando, FL
If I understand correctly he installed each filter and drove around 500 miles? Man, talk about an inconsistent test environment! If it was a rainy time of year there would be less crud in the air for the filter to trap thus skewing the results. If you happen to follow a dump truck or other trucks stirring up dirt along the road chances are more dirt will slip through the test filter and end up on his dirt-trapper filter. Sorry, I can't take any stock in his results.
Nov 8, 2007 | 09:08 AM
#20
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From: Tennessee
I still will never use K&N again. Like some others on here, I stick to good ol' OEM paper filter. Nothing like a clean, fresh filter with no oily mess or cleaning to do. Totally worth the $10 or whatever it is.
