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Air Box Mod on '03 4x4 2.7 5-speed

Discussion in '1st Gen. Tacomas (1995-2004)' started by Tacoma007, Mar 26, 2010.

  1. Mar 26, 2010 at 4:00 PM
    #1
    Tacoma007

    Tacoma007 [OP] Member

    Joined:
    Mar 16, 2010
    Member:
    #33351
    Messages:
    24
    Gender:
    Male
    North Central NC
    Vehicle:
    03 Tacoma Xtra Cab 4x4
    Just got my Tacoma a couple weeks ago.
    Here is an alternative to the "Deckplate" mod. I didn't want a 4" hole in the front of my airbox for various reasons--dirt, mud, water, moisture (on a windy--rainy--snowy, etc day)--and I didn't want to have to get out and screw in a cover, etc.
    BUT--I still wanted to let the engine breathe a little more
    SOOOO
    I got the K&N filter and a shower stall drain (all plastic) screw on with gaskets.
    I cut the hole in the front of the airbox and just screwed the drain in--there are many bonuses to this:
    you get better air-flow
    you have a built in screen to keep out bugs, rats, mice (you get the picture)
    you dont have to seal off anything--the built in rubber gasket comes with it
    the part of the drain that sticks into the air box is tilted forward and has rings inside it--SO if any water, mud, etc does get that far--it should catch on the rings (somewhat) and drain out the front
    IF you ever want to close it off completely the make a drain cover that snaps right on!
    Cost me $11 at Lowes and took about 20 minutes.
    I haven'd had a chance to measure the actual gas mileage gain--but I really do have a better throttle response and it actually will gain speed on the hill above my house now in 5th gear!

    Just an FYI--I like it better than the deckplate mod--for simplicity, etc.

    P1010076.jpg
    P1010077.jpg
    P1010078.jpg
     
  2. Mar 26, 2010 at 4:01 PM
    #2
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

    Joined:
    May 1, 2007
    Member:
    #1475
    Messages:
    26,258
    Gender:
    Male
    First Name:
    Will
    York,South Carolina
    Vehicle:
    '16 Tundra TRD Pro
    getting there....
    good job man. good and innovative!!!
     
  3. Mar 26, 2010 at 6:41 PM
    #3
    Tacoma007

    Tacoma007 [OP] Member

    Joined:
    Mar 16, 2010
    Member:
    #33351
    Messages:
    24
    Gender:
    Male
    North Central NC
    Vehicle:
    03 Tacoma Xtra Cab 4x4
    Thanks!

    I am interested in any possible mpg gains--I should know by next week!:D
     
  4. Mar 28, 2010 at 10:32 AM
    #4
    Tacoma007

    Tacoma007 [OP] Member

    Joined:
    Mar 16, 2010
    Member:
    #33351
    Messages:
    24
    Gender:
    Male
    North Central NC
    Vehicle:
    03 Tacoma Xtra Cab 4x4
    First check of MPG gains--about 2.7!
     
  5. Jan 15, 2011 at 5:11 PM
    #5
    Turp

    Turp Well-Known Member

    Joined:
    Jan 10, 2011
    Member:
    #49037
    Messages:
    134
    Gender:
    Male
    Virginia
    Vehicle:
    02 PreRunner SR5
    K&N panel/ snorkel removed Keyless
    Just got introduced to the air box mod on Tacomas. I've removed factory snorkels on previous vehicle and felt a nice improvement in throttle response. I was looking for an alternative to the snorkel removal and like this concept and especially since I'll leave the off-roading to my jeep.

    Thanks for sharing this.
     
  6. Jan 15, 2011 at 6:01 PM
    #6
    Ridgerunner

    Ridgerunner Well-Known Member

    Joined:
    Mar 14, 2008
    Member:
    #5269
    Messages:
    3,621
    Gender:
    Male
    First Name:
    Frank
    San Francisco
    Vehicle:
    2001 prerunner doublecab limited
    2001 with; cat-back twin exhaust,elbow mod, Westin bullbar with Hella550's, Snugtop XTR camper shell, TRD off-road 2x4-black beauty.
    These trucks really do behave better when you free up the airbox! Nice idea you have there OP:)
     
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