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  1. W

    In need of a good LMM DSP5 tune

    I have tried numerous times, I even put the autocal in a boot loop where it’s flashing and tried. It keeps saying the firmware version is older than the one that is installed.
  2. W

    In need of a good LMM DSP5 tune

    I try to add the dsp5 file to my autocal and and it says my dsp5 file is not supported by my current firmware. I don't know how to find the actual tuner that made the dsp 5 file. so I will probably have to purchase another dsp 5 file. (basically I made a mistake updating the firmware in the...
  3. W

    In need of a good LMM DSP5 tune

    I purchased a 08 2500 sierra lifted and it had the autocal and dsp5 switch in it. I never could tell the difference after I tried reprogramming the tune in it numerous times and still don't notice any difference. I have already replaced the switch witch did not help. I believe I erased my...
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