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  1. #1

    Default 4.3 intake question

    Hey guys, I have an 09 reg cab v6 and been wanting to get rid the weird box thing that mounts to the front side of my intake. Is it necessary or what can I do to remove it?
    2009 Silverado 4.3L, GM Performance Parts cai

  2. #2


    Your signature says that you have a Gm performance parts CAI. Are you talking about the box around the air filter? I am not familiar with the model you have. Can you take a picture of the box that you are referring to?

    1995 Silverado 4x4
    6" BDS Suspension Lift-3" Body Lift-Add A Leaf in rear -Trailmaster SSV Shocks-Duel Steering Stabilizer Kit -AirAid Cold air intake-
    4.56 Gears with Detroit Auburn Locker-Pro-Comp Traction Bars with duel shocks-Aluminum Skid Plate Kit-38.5" x 16.5" Mickey Thompson Baja Claws-Constant Dropping fuel gauge

    2005 Yukon XL Jet Power Programmer, Bilstein Shocks, Bilstein rear springs, Helwig Anti-sway bars, EGR Window Visors, EGR Hood Shield, Denali Headlights, Headlight harness upgrade, GE NightHawk Bulbs, White Night Rear lighting system, Russell Braided SS brake lines, PowerStop Brake pads, PowerStop cross drilled and Slotted Rotors,
    2002 Silverado ext cab 2wd (Sold)
    2003 Yukon XL (Totaled)

  3. #3


    Its the box thing that is attached to my intake right above the throttle body with a small tube connecting to the passenger side valve cover. Here is the pic

    I have the GM Performance cold air box with cone filter and I want to replace the rest of my intake but I'm not sure if this extra part is necessary.

  4. #4


    I'm not sure how to attach pics yet but in my profile under photos I have a pic of the gm air box and the intake tube where the box part I am talking about. Its pic #5

  5. #5

    mfleetwood's Avatar
    Join Date
    Jul 2010
    Denver, CO
    Blog Entries


    Quote Originally Posted by kevinbobo View Post
    I'm not sure how to attach pics yet but in my profile under photos I have a pic of the gm air box and the intake tube where the box part I am talking about. Its pic #5
    Due to your low post count, our anti-spamming device hid your post with link to your pic. All should be able to see it now.

    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

  6. #6
    Jr. Mechanic b-radical's Avatar
    Join Date
    Nov 2009
    San Diego, California, United States
    Blog Entries


    Yes, its necessary if you want your truck to last as long as possible.

    2000 Silverado, 4.8L, LS
    3" Dynomax cat back exhaust
    Drop-in K&N air filter
    200 amp Nations alternator
    KYB GR2 Shocks
    Bluetooth OBD2 adapter with Torque App on Samsung Note 2
    Custom Stereo System l Pioneer/ Boss door Speakers l 1200 watt Performance Teknique amp l 1 farad capacitor l 2 12" kicker comp subwoofers
    Slider rear window l Locking tailgate, de-baged l 265/75/16 Bridgestone Dueler H/L tires l Fully synthetic oil l Tinted windows
    4l65e upgrades - five pinion planetaries l HD sun shell l high performance band

  7. #7


    @b-radical, I have no idea why. So, I have to ask why?
    Tim Walters (Curky)

    Wrangler AT/S 265/70R17 - Trail-FX window vents - Husky fitted splash guards - Silver Star zXe - Leveling kit -

  8. #8


    I have seen where intake systems like K&N have that box part removed on the v8s and I was wanting to do that with mine. But since I have a v6 there isn't much out there for me.

    I just wanted to get more experienced opinions on this. (thanks B-radical and Pikey) I'm pretty sure its there to help keep the engine quieter through the intake and to give the valve cover breather tube a place to connect, but I can reconnect it to the intake tube itself. I'm not sure why GM designed it this way and if it is even neccessary.

  9. #9


    That part is to help reduce intake noise, it serves no other purpose.
    Removing it, other than make the intake slightly louder, will have no other negative effects on your engine.

  10. #10


    Thanks for the help you guys!!

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