what is your duramax fuel milage on an 08? I was thinking of getting one but a friend says 13 is the best you will get
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I had the bully dog controller, and boy did it work great, but it kept shutting my truck down. Pulling tranny codes...too much torque??? don't know. But would like to know about you chip. 05 Duramax
I had the bully dog controller, and boy did it work great, but it kept shutting my truck down. Pulling tranny codes...too much torque??? don't know. But would like to know about you chip. 05 Duramax