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  • #1

    Question about gmtuners/Sinister Performance

    Has anyone gone through them for OBD1 fwd tuning? Are they honest, fair, and put customers first? Anyone hear/read/had ANY problems with there products, people, and/or services?
    How are there mail order tunes for boosted applications?
    Lifting my front wheels, one jack at a time.
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  • #2
    they are definately fair and honest. as far as i knwo they are the only place available that can tune the 94-95 dohc memcals
    The Official Rotating Mass Nazi

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    • #3
      What sort of prcing would someone in the end pay for a boosted type tune?
      Lifting my front wheels, one jack at a time.

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      • #4
        not sure for tunes but i paid only $40 for basic changes.
        The Official Rotating Mass Nazi

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        • #5
          Ok thanks.
          Lifting my front wheels, one jack at a time.

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          • #6
            I have a sinister chip in my car. My car runs good. Its in a turbo 3.4 fiero. Car runs good with it. Didn't cost me much, like $50 or something. I recommend

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