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  1. 2012 6.7 tuner

    11-16 6.7L Power Stroke Aftermarket Performance
    Hey guys. New to this site. I have a 2012 f350 deleted with Spartan tuner. The screen is now cracked and i cant use the programmer and I am looking to change my rearend gears. Any help on what i could do to change tuners or reprogram gear ratios since spartan is now out of business and keep the...
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