$150
2004.5-2005 Duramax lly programmer
Bull dog Power pup programme three levels
50-hp
70-hp
90-hp
you can get an unlock code for 150 hp but not sure it costs
you can also read and clear codes reprogram for tire size or rear gear ratios i also got better fuel economy from around 12mpg to around 16 mpg depending on how i drove of corse
2004.5-2005 Duramax lly programmer
Bull dog Power pup programme three levels
50-hp
70-hp
90-hp
you can get an unlock code for 150 hp but not sure it costs
you can also read and clear codes reprogram for tire size or rear gear ratios i also got better fuel economy from around 12mpg to around 16 mpg depending on how i drove of corse
