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  1. #1

    Default BBK Throttle Body

    BBK claims a 7-12 HP gain with their throttle body. Does anyone have one of these on their truck? Is it worth 400 bucks??

    '04 GMC Sierra 5.3 Z-71
    Magnaflow Cat-Back Dual Exhaust
    Banks CAI

  2. #2
    TRPLXL2's Avatar
    Join Date
    Jan 2009
    Norwalk, Ohio
    Blog Entries


    I had the 85mm BBK throttle body on my 05' silverado with the 5.3, and all it did for me was make the engine run crappy. you have to have it tuned, or buy a programmer and fix the A/F ratio. I had over $1,500 invested in my motor, and I wasn't impressed. I ended up selling that throttle body for $200 at the swap meet, I am sure someone will get on here and tell you how great they are though................
    2004 Chevy Colorado
    LS1 5.7 swap/TBSS rear axle swap

  3. #3


    Thanks,man. Based on your experience,I think I'll pass!

  4. #4
    Sr. Engineer
    Join Date
    Jun 2009
    San Diego, CA


    Not worth it unless you have an F/I system and need to go bigger. Your current throttle body is just fine for 99.9% of the systems out there.
    Black Bear Performance- Custom Tuning Solutions

    Authorized EFILive and MAGNACHARGER seller

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