Recent content by 2021 x31 Mo

  1. 2

    1st time Duramax owner

    It says my attachment is to big. I tried!!!!!
  2. 2

    1st time Duramax owner

    I just bought a 21 Gmc x31 Duramax 2 days ago. I done some research before pulling the trigger but looking for a good forum to get and share advice from. I'm loving the power and mileage out of this thing so far.
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