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Thread: 4.3L V6 Perfomance

  1. #1
    Potential Tuner
    Join Date
    Sep 2020
    North Bergen

    4.3L V6 Perfomance

    I have a 06 Silverado with a 4.3L Vortec in it. I've really been looking for some kind of tuner/programmer/chip or anything to help boost its performance. I'm not all that much into gaining HP, I just mainly want better gas mileage.

    So does anyone have any recommendations of products to try? I know there's all kinds of tuners and programmers out there but its hard to find em for a V6 truck. I've heard people say to get the software changed on it but I don't know much about that so if anybody could help me out there I'd appreciate it.

    Thanks for any input

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Rogers, MN
    To be honest here, your driving style and how fast you drive is going to do more for fuel mileage than a tune will. Trying to squeak out even 1 or 2 mpg is a very tall task with a tune alone.

    Or you can go the route of lightweight wheels and re-gear to more of a highway gear to lower the rpms at freeway speeds. Doing the gears would make it slower getting up to speed though.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.