2006-2010 Duramax LBZ and LMM DSP5 tune file.
This tune file will be sent via email, and you will need an EFILive V2 or AutoCal to load the tune into your vehicle.
2006-2010 Duramax LBZ and LMM DSP5 tune file.
This tune file will be sent via email, and you will need an EFILive V2 or AutoCal to load the tune into your vehicle.