This is funny because my 2007.5 lmm started for a week an a half last year in steam boat colorado snowboarding it got down to -10 to -20 every night never plugged the truck in and fired like a kitten every night !! dont worry about starting a duramax in the cold.
Bills custom intake, mbrp duels, efi 5dsp, 3'' down pipe, fass 150, amp steps, 4'' fab tech lift , 22x12, 35' toyos, Front e-locker.
Year to come.
twins,tranz,studs, head work.