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DIY: Secondary Air Filter Removal

Discussion in 'Performance and Tuning' started by 007Tacoma, Jul 7, 2007.

  1. Oct 3, 2013 at 5:14 AM
    #621
    USArchangels

    USArchangels Well-Known Member

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    Stock thick ass air filter replaced w/ drop in aFe Pro Dry S.
    Secondary (charcoal) filter ripped out & tossed
    MAF screen ripped out and tossed
    Not looking back!
     
  2. Oct 8, 2013 at 10:16 PM
    #622
    Tacodriver

    Tacodriver Active Member

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    deflapped debadged snow filter delete bed rail delete K&N drop in
    I removed the "snow filter" off my truck today. I have a 2011 4.0, I just used a knife and razor to cut out the plastic tabs holding it in place. I noticed the engine can breath a lot easier now, Im sure it frees up some hp in the very high rpm. Hopefully it will get some better mpg. I also cleaned my MAF sensor and intake box while I had it all apart. Thinking of getting a drop in high flow filter next.

    20131007_180615.jpg
    20131008_194741.jpg
    20131008_194733.jpg
     
  3. Oct 9, 2013 at 5:30 AM
    #623
    worthywads

    worthywads Well-Known Member

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  4. Oct 9, 2013 at 8:00 AM
    #624
    DonziGT230

    DonziGT230 Gearhead

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    Cleaning a dirty MAF will help any vehicle. Pulling the secondary will make it only as fassst as you think it will.
     
  5. Oct 24, 2013 at 5:31 PM
    #625
    catsman50

    catsman50 Well-Known Member

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    just did this to my 08 prerunner very easy mod, and im sure after 73000 miles that my truck has it was restricting a little. Im sure I wont notice any gains besides hopefully a couple mpg extra!:pray:
     
  6. Oct 25, 2013 at 7:36 AM
    #626
    DonziGT230

    DonziGT230 Gearhead

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    Factory cruise added, wood storage box in bed, wood center console/armrest, charcoal air filter delete.
    The only way it might get restricted is if you had K&N type air filter. This is NOT a secondary air filter, it's a carbon trap for gasoline vapors and does nothing for filtration.
     
  7. Oct 25, 2013 at 12:52 PM
    #627
    worthywads

    worthywads Well-Known Member

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    And of course there will be no extra couple mpg. :rolleyes:
     
  8. Oct 25, 2013 at 6:54 PM
    #628
    catsman50

    catsman50 Well-Known Member

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    Turns out the truck had a k&n in it so I went to the dealer today and got a stock filter for 15$
     
  9. Oct 28, 2013 at 3:25 PM
    #629
    AlexHermsen

    AlexHermsen Active Member

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    So I went through this thread and didn't see anything about this effecting dust getting into the engine as it's just required for emissions. I am considering taking this carbon filter out on my '12 4cyl, and putting it back in when it comes time for me to get smogged.

    Anything I need to know?
     
  10. Oct 28, 2013 at 5:00 PM
    #630
    worthywads

    worthywads Well-Known Member

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    Why would you want to do it?

    It has zero effect on engine performance, and no it doesn't effect dust since your air filter does that.

    You will have to break the plastic rivets that hold it in place and then find a way to reattach when emission time comes.

    It really is a pointless mod.
     
  11. Oct 28, 2013 at 8:30 PM
    #631
    Rich91710

    Rich91710 Well-Known Member

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    +1

    My truck will probably need smog next year... debating whether to chance it or just buy a new airbox lid.
    I really wish I had never popped that thing out.
     
  12. Oct 29, 2013 at 8:35 AM
    #632
    DonziGT230

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    Factory cruise added, wood storage box in bed, wood center console/armrest, charcoal air filter delete.
    If you really want it gone I'll trade you for my cover, already cleanly deleted the charcoal filter.
    My smog guy is a buddy and won't check it, but if I could go back I'd have left it alone. There is no benefit to removing it and it'll never get dirty and need replacement. There's a minute possibility that leaving it there will help the air filter by blocking the gas fumes from getting to it; probably doesn't matter, but thought I'd throw a positive other than emissions reduction into the mix.
     
  13. Nov 16, 2013 at 11:08 AM
    #633
    jkorting1988

    jkorting1988 New Member

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    I just recently removed the secondary filter, replaced plugs, and ran some lucas in the fuel. I still however see a lag in power when trying to accelerate.
     
  14. Dec 1, 2013 at 3:00 PM
    #634
    Todos Larry

    Todos Larry Member

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    Have any of you added the K&N 63 cold air system to replace the factory, what about improved MPG.
    My 2013 V^ auto is getting 275 per tank- uggg The truck seems to be running great but milage is horrible
     
  15. Dec 1, 2013 at 6:15 PM
    #635
    worthywads

    worthywads Well-Known Member

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    Intakes don't improve mpg.
     
  16. Dec 26, 2013 at 11:22 AM
    #636
    Matt

    Matt Member

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    I am new Tacoma member :D

    I have been getting around 20MPG on 2011 prerunner which is all stock. I went ahead and purchased aFe Pro Dry S air filter. I have been on the fence about removing the second filter. I am in Texas so shouldn't be an issue with emissions test.
     
  17. Dec 27, 2013 at 5:41 AM
    #637
    Todos Larry

    Todos Larry Member

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    JBL Stereo and full Nav K&N Cold air intake system
    Can't offer any real thughts on this, my 2013 is TRD is stock and runs great but gets around 14-16? I just bought the K&N and will install this week.
    Hoping for a power booast and better mileage
     
  18. Dec 27, 2013 at 1:24 PM
    #638
    Justus

    Justus fucks not given

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    people have reported hp losses as recorded by a Dyno from K&N intakes iirc.

    ymmv, just throwin that out there.
    they also have terrible filtering properties, and ya gotta make sure to keep the oil on the filter to a minimum and clean ur maf sensor regularly.
     
  19. Jan 28, 2014 at 11:09 AM
    #639
    DJ KRAZY K

    DJ KRAZY K Active Member

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    So, I know this thread is about taking of the secondary, but what about replacing it? Mine got a little wet after I went through some deep muddy water, I thought wasn't as deep as it was, and yes I did get out and check the depth but couldn't get to the middle of water.

    IMG_20140125_141705_881.jpg
     
  20. Jan 28, 2014 at 7:07 PM
    #640
    Rich91710

    Rich91710 Well-Known Member

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    It'll dry out quickly with the air being pulled through it.

    I'd be more concerned about water getting into the MAF and other sensors downstream of the filter... or did it get just enough water to dampen it and not flood out?
     
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