Our custom EFI LIVE tunes for your LB7 Duramax are going to wake your truck up. On the fly tune changing always insures that you are in the right tune when you want it, with no waiting. From Mild to Wild, and everything in between. We have tunes for the MPG conscience Duramax LB7 driver to the guy that goes through more tires than he has sense! If you're in the market to make your Duramax LB7 drive like you never thought possible, than our EFI LIVE tuning is for you!