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  1. #21
    Sr. Mechanic larryleeUSN's Avatar
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    Jun 2009
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    Now stationed in Mayport,Florida
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    Default

    i actually did this same thing to my air box. me and my buddy just started hacking away at it. it does help. the only thing i didnt do is put a screen in there. i just left it wide open. i had a few issues with off roading but that was my fault for not thinking ahead and placing in a filter/screen. i would recomend this mod if you dont want the sound or even if you just dont want a CAI. or if your truck is under warrenty. i dont know what the dealer would say to a hacked up airbox.
    Lawrence Lee,United States Navy, Engineering.
    2008 Silverado CC. Z71 4x4. leveling kit on with exhaust hopefully putting on soon

  2. #22
    Jr. Apprentice BAMES's Avatar
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    Jun 2009
    Location
    Skowhegan, ME
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    Looks like a cool and effective mod, cheap too. I think I may do it. Definitely use a screen of some sort!
    BAMES

    1999 GMC Sierra
    5.3l 325 ci Vortec
    Vortex dual exhaust

    Other:
    2003 GMC Yukon 5.3
    1994 GMC Sierra 5.7

  3. #23
    Sr. Mechanic
    Join Date
    May 2009
    Location
    Austin Texas
    Posts
    178

    Default

    Grreat Ideas! Thanks All!!
    Be Blessed

  4. #24

  5. #25

    Default

    What does this do??

  6. #26

    Default 08

    Anyone do this mod to the NNBS? I am intrested in this mod. I did this to My Titan and it was awsome addition to the exhaust work I had. It wa slisted as Best Bang for the Buck besides 2 Degree Timing Advance.

    Anyone? Anyone?

    Urban Tactical Design
    2008 Silverado Z71 Crew Cab
    -Tint
    -Debadged
    -Custom Grill Insert
    -Nerf Bars Steps
    -Leer Canopy with Thule Racks 100XL
    -285 65 18's
    -Incubus"Recoil" Wheels18x9
    -Tuff Country 2 inch Level Lift
    -Weather Tech Molded Mud Guards
    -Thule MOAB Basket (painted)
    -Reverse Lights mounted rear of steps (55w)
    -Garmin GPS (Portable)
    -Flo-Pro Exhaust 40 series
    Winter Set
    265 70 17's on stock z71 wheels painted xtreme liner black

  7. #27

    Default

    very simular to the deck plate mod, i was trying to figure out a way to do this to my Sierra. i have it done to my Tacoma & i noticed after a few weeks of driving 2-3 mpg gain & just a bit more power with a vaccuum sound to it, great mod! there just isnt enough room with our sierras or silverados air boxes for this!
    http://www.trdoffroad.com/articles/deckplate/index.php
    Carl
    2005 GMC Sierra 1500, reg cab, 4.8 ltr, 5 spd, 4X4, Flowmaster 40 series w/3" exhaust pipes & 4" tips. ReadyLift torsion bar keys(part#66-3000), K&N air filter (soon to be getting a AFE Pro Dry S airfilter), & airbox mod .

  8. #28

    Default

    Quote Originally Posted by BAMES View Post
    Looks like a cool and effective mod, cheap too. I think I may do it. Definitely use a screen of some sort!
    u wouldnt really need a screen, as long as the filter catches it. a screen wouldnt hurt though! i dont really take my gmc off roading too much, i think im just going to cut the hole out!

  9. #29
    Sr. Engineer Joethepoolguy's Avatar
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    Feb 2010
    Location
    Leon, NY
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    437
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    The hole in the air box sounds like a good idea. I went out, took my air box out, and someone beat me to it. There isn't only one hole in the box, but two. They put one hole in the front, and one hole in the back. The only thing I see wrong with it, is there are no screens on the holes. Even though there IS an air filter there, I am putting some sort of filters on the new holes.

    2004 Silverado 2500HD LT 4x4 QuadraSteer
    6 liter w/ Comp Cam
    Stainless Steel Headers
    K&N Panel Filter W/Airbox Mod
    A/C Iridium Spark Plugs
    SCT Power Programmer
    MPT Custom Tune
    MagnaFlow Dual Exhaust
    Cobra 29 LTD Bluetooth CB
    Custom Badges
    3" Rear, 2" Front Rough Country Suspension Lift
    33x12.5x33 M/Ts

  10. #30
    Jr. Apprentice
    Join Date
    Feb 2008
    Location
    sinaloa mexico
    Posts
    17

    Default wait 20 mins i did a better thing

    wait 20 mins i did a better thing!! goin to upload new pics =]

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