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Secondary Air Filter

Discussion in '4 Cylinder' started by Tacomnut, Dec 26, 2009.

  1. Dec 26, 2009 at 5:36 AM
    #1
    Tacomnut

    #1
    Tacomnut [OP] Member

    Joined:
    Dec 26, 2009
    Member:
    #28162
    Messages:
    18
    Gender:
    Male
    Rhode Island
    Vehicle:
    2.7 I4 4X4 Ext Cab
    K&N Air Panel
    Where is the secondary air filter located? I just dropped in a K&N panel, and I'm not sure I need a secondary air filter any more.

    Thanks!
     
    Tacomnut, Dec 26, 2009
    #1
  2. Dec 26, 2009 at 11:29 PM
    #2
    DGXR

    #2
    DGXR Well-Known Member

    Joined:
    Sep 1, 2009
    Member:
    #22094
    Messages:
    2,204
    Gender:
    Male
    First Name:
    Friend
    Sacramento, CA
    Vehicle:
    2006 2.7L SR5 2-wheel drive
    The secondary air filter is mounted into the upper part of the airbox, the part attached to the tube that runs across the top of the motor. It's not really an air filter, it's part of the emissions system and your truck will fail the inspection if it's not installed and intact. Some have removed it with noticeable increase in performance from their 4-cyl, and these people say they can re-attach it with rivets or something before every smog inspection.
     
    DGXR, Dec 26, 2009
    #2
  3. Dec 26, 2009 at 11:35 PM
    #3
    EquinsuOcha

    #3
    EquinsuOcha Bourbon

    Joined:
    Mar 18, 2008
    Member:
    #5368
    Messages:
    3,666
    Gender:
    Male
    First Name:
    Casey
    Ft Worth, TX
    Vehicle:
    07 PreRunner
    AFE Drop-in filter, Wet Okole seat covers, Hifonics 6.5" components in front, MA Audio midbasses in rear, Kicker 8", RE Audio 2 channel for components, Elemental Designs bridged 2-channel for sub, CB, Devil Horns, Rancho QuickLift, Rancho RS9000XL rear shocks, Toytec AAL, stickers, things and stuff.
    Only in certain states. Mine passed just fine.
     
    EquinsuOcha, Dec 26, 2009
    #3

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