2016+ XLD28 Duramax Powertrain
Hey guys, I am playing pure hell trying to delete my 2.8. I went through Same Day Tuning with an EFILive delete/tune. 5 months of back and forth and NOTHING. Can anyone help me with a tune/delete that works? HP Tuners MPVI2 has a tuner that they claim works, but I can't get hold of a human...