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Thread: Lmm 2009 GMC Sierra 2500 hd HELP tuning please

  1. #1
    Junior Member
    Join Date
    Nov 2018

    Exclamation Lmm 2009 GMC Sierra 2500 hd HELP tuning please

    Imma go short and sweet if u want me tell ya more ask but,,,

    I wanna understand the tuning more so then building them,, I

  2. #2
    Forum tyhee Site Admin GMPX's Avatar
    Join Date
    Apr 2003


    All your posts so far are very hard to read and comprehend, on a forum it helps to use full words and sentences. You'll get more help if people don't give up reading within 10 seconds trying to understand what you are saying.
    Need official EFILive help, please go here.
    For tuning support please post your questions on this forum (or other auto forums).
    Sorry if I don't respond to your PM, don't take it personal.

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