KD Custom ECM programming for Duramax LBZ

Tunes available to produce as 50HP economy/tow and 70HP Perf tow. I really prefer the 50HP econ tow for the working truck. While economy gains cannot be guaranteed, the economy tune has been producing very consistent mpg numbers at around 19-20mpg and sometimes more for single wheel trucks. Smooth shifting, low EGT’s and more power/response than most overrated 80 and 100HP generic tunes.

Installation Instructions