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K&N high flow intake

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Ryguy6291, Apr 28, 2012.

  1. Apr 28, 2012 at 10:05 PM
    #1
    Ryguy6291

    Ryguy6291 [OP] Stormtrooper

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    How does everyone feel about the filters for the K&N air intake systems? I've heard mixed feelings.
     
  2. Apr 28, 2012 at 10:10 PM
    #2
    Maticuno

    Maticuno Resident Pine Swine

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    Greater airflow comes at the expense of something. In the K&N's case I believe it is filtration quality. I'm not about to take something that Toyota engineers spent lots of time designing and replace it with essentially wound management cloth soaked in oil.
     
  3. Apr 28, 2012 at 10:16 PM
    #3
    monsterkx2fiddy

    monsterkx2fiddy Well-Known Member

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    as far as a cold air intake?
    if so you need to oil the filter which can(and usually does) result in throwing off the intake sensor.
    i went afe pro dry. i am very happy with it. no ecu problems.
     
  4. Apr 28, 2012 at 10:18 PM
    #4
    PerfectTekniq

    PerfectTekniq I'm undefeated in the UFC.

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    This. I've had problems in the past with K&N and tend to stay away from them. I see them installed all the time on crappy Civics and Integras around here that probably have numerous CEL codes and they DGAF.
     
  5. Apr 28, 2012 at 10:36 PM
    #5
    KenpachiZaraki

    KenpachiZaraki Its Wicked Flow BITCHES!!

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    Go with a dry filter, oil comes off the filter and gets on the mass air flow sensor, resulting in a check engine light. Could cost more money in the long run, not to mention having to buy recharge kits.
     
  6. Apr 28, 2012 at 10:44 PM
    #6
    2000GTacoma

    2000GTacoma Well-Known Member

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    you know i hear poeple complain about the oil getting on the MAF. Its funny I have run K&N oil filters on 2 tacomas with the 3.4L and never had a problem. one has over 307k miles on it and the other has 160k and both go strong everyday. Also K&N has done several test about the oil on the MAF. here is the link http://www.knfilters.com/MAF/massair.htm
     
  7. Apr 28, 2012 at 10:59 PM
    #7
    SYTFUxMBRProjects

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    I have a K&N drop-in filter in my DCLB '06 Tacoma. You just have to correctly oil the filters. Excessively oiling the filters will cause these problems that a lot of guys on here are talking about (MAF contamination).


    A little off topic, but no, those cars don't get CEL codes with K&N filters.
     
  8. Apr 28, 2012 at 11:16 PM
    #8
    PerfectTekniq

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    Sorry for straying slightly off topic but if you're saying a improperly oiled K&N filter, no matter how over oiled it is, wont throw codes in a Civic, 1st gen or 8th gen. Well...

    FWIW OP, people love aFe ProDry here due to not having to be oiled.

    Good night fellas.
     
  9. Apr 28, 2012 at 11:29 PM
    #9
    SYTFUxMBRProjects

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    Those cars (up to '06-ish) don't have a MAF to get contaminated in the first place :p
     
  10. Apr 28, 2012 at 11:59 PM
    #10
    schleygo

    schleygo Well-Known Member

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    I had a 3.4L w a highflow K&N, had to clean the MAF every 3-6months. It looked like it was coated in dust. I would notice better throttle response after I cleaned it.

    As they say, different results for everyone
     
  11. Apr 29, 2012 at 12:07 AM
    #11
    Rich91710

    Rich91710 Well-Known Member

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    Pretty sure my '94 HiLux had one (it was OBD-I) and my '95 Suburban absolutely had one, as did my '03 Tundra, Wife's '04 Rav4 and '00 Echo....
     
  12. Apr 29, 2012 at 12:10 AM
    #12
    SYTFUxMBRProjects

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    I was quoting PerfectTekniq about his comments on "crappy Integras/Civics" getting CEL with K&N filters, not about the Toyota trucks.
     
  13. Apr 29, 2012 at 12:11 AM
    #13
    schleygo

    schleygo Well-Known Member

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    My 2001 3.4L did also
     
  14. Apr 29, 2012 at 12:15 AM
    #14
    Rich91710

    Rich91710 Well-Known Member

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    And "crappy Integras/Civics" certainly had MAF.
    Pretty much every OBD-II vehicle does. OBD-II kicked in mid-90s.
     
  15. Apr 29, 2012 at 12:22 AM
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    SYTFUxMBRProjects

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    LOL, most of them are equipped with MAP sensors, totally different than MAF sensors. I work on those cars all the time, and I have one as a project street/race car.
     
  16. Apr 29, 2012 at 4:24 AM
    #16
    Raylo

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    I have run K&N for many years on my Z28 Camaro and Tacoma. Never had a MAF issue. Those reports may be due operator error by some folks that over-oil them and/or don't let them dry properly. And one recharge kit lasts damn near forever so I can recommend them. The dry filters look like a good choice, too. Would be a little less work. But cleaning and oiling my K&N every 10k or so is not much of a burden.
     
  17. Apr 29, 2012 at 8:02 AM
    #17
    Highland Logan

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  18. Apr 29, 2012 at 10:08 AM
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    NEAScott

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    I was going to post the same link.

    You are actually cleaning the filter too much. The more that you clean them, the filter material degrades (bigger holes for dirt to pass through).
     
  19. Apr 29, 2012 at 10:46 AM
    #19
    Rich91710

    Rich91710 Well-Known Member

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    Excellent link.

    And reiterates what many have been saying.

    If you are in an offroad race and airflow is the most important factor over engine longevity, K&N is the way to go.

    But the stock intake on the 2.7 is more than adequate to flow enough to meet the demands of the 5.7... the normally-aspirated 2.7 and 4.0 don't need any help in the intake department.
    CAI systems aren't... they draw air from under the hood, at best they rely on a box that seals to the fender and hood, and then they are drawing air from the same restrictive passage that the stock airbox draws from.
    One or two actually reroute the intake to the radiator support and actually do flow better than stock (and see above under airflow requirements).

    But run a K&N and send oil samples to Blackstone. Within 2 oil changes your silicon levels will be high enough for their engineer to express concerns about your air filtration system's effectiveness.
    This will lead to cylinder wall scuffing and premature oil consumption issues.
     
  20. Apr 29, 2012 at 11:40 AM
    #20
    kill em all

    kill em all Active Member

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    K&N don't ever get one!!! Who wants to suck in oil and air I thought the term is cold air intake not a hot air oil intake hahaha.. Just had to post my 2 cents!
     
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