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  1. #1
    Sr. Apprentice
    Join Date
    Mar 2011
    Location
    Waterloo, IL
    Posts
    33

    Default New MBRP Exhaust doesn't sound right....

    Hi guys! I recently installed a full MBRP cat back system with the side exit tail pipes. I like the sound of it at idle and when I rev, but when I accelerate hard it makes a loud whushing sound. It is almost like a bad exhaust leak, but I have checked all the clamps and they are all tight. Any ideas on what this could be? Has anyone else with MBRP had this issue?

    Thanks for everyones help in advance, always greatly appreciated!

    Btw, it is a 2011 1500 5.3.
    2011 Chevrolet Silverado LT Z71

  2. #2
    Master Mechanic Burden33's Avatar
    Join Date
    Mar 2009
    Location
    Goose bay, Labrador Canada
    Posts
    979

    Default

    im not really sure what the problem is i got the same exhaust on my truck except its out the rear and i got a loud low tone when acclerating unless im really on the throttle then its more of a raspy sound to it. But my brother got the side exit exhaust and i have never heard that sound come out of his 07.5 but then again we only got 4 speed transmissions. Did you try and contact mbrp them selfs


    Fabtech/Banks Ram Air |Fuel Off Road/ 315/70/17 duratracs |Hyper tech / Spencershids |
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    Chevy Ridin' High
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  3. #3
    Sr. Apprentice
    Join Date
    Mar 2011
    Location
    Waterloo, IL
    Posts
    33

    Default

    I have not tried contacting MBRP yet, but I'm thinking that may be the best solution. Thanks for the help!
    2011 Chevrolet Silverado LT Z71

  4. #4
    Master Mechanic Burden33's Avatar
    Join Date
    Mar 2009
    Location
    Goose bay, Labrador Canada
    Posts
    979

    Default

    No problem tha what we are here for.


    Fabtech/Banks Ram Air |Fuel Off Road/ 315/70/17 duratracs |Hyper tech / Spencershids |
    Color Matched Bowtie |15% Tint on Front Windows|20% Tint on Back Windows




    Chevy Ridin' High
    "Black rims are as cool as a boner at a swim meet"

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