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  1. R

    efi live tune file problems

    I bought the PPEI 5 tune package and I'm having trouble with the maxx tune file. I reached out to DPP several times but it's gotten me no where. I get the 0331 error code around 50% when I install the tune. I was informed to do a full flash with the a flash but I get the 502 error I think I did...
  2. R

    New here from the DFW area

    Sorry guys I've been here for about 2 weeks and never got to introduce myself. I drive a 2014 gmc denali 2500hd.
  3. R

    Programmer for a 2014 duramax

    I'm interested in getting a programmer for my duramax, looking to improve power, towing and speed limiter. Can you help me?
  4. R

    Needing a vendor

    Im new here and to the diesel world, does anyone know a vendor on here? Looking for a programmer for my 2014 duramax.
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