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  1. #1

    Default 2003 GMC Sonoma bolt on HP

    I have my Dads 2003 Sonoma 4.3L V6. GOD rest is soul...I want to add on some bolt on HP. I would love to bolt in a V8 but that is not an option at this time. Any Ides? What works and what doesn't? Programmers, exhaust etc.?

  2. #2

    Default

    A good cold air intake, Exhaust, Programmer, Underdrive pulleys etc. Look up member "goldie" He's built a nice 4.3
    1998 K1500 Ext. Cab 4.3 5spd
    Amsoil, CIA

    2007 Harley Davidson Vrod
    Amsoil, Vance & Hines 2into1, K&N Topless,
    Screamin Eagle Racetuner, StageII cams,
    Carbon fiber front fender, and a few more lil goodies:wink:

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