I ran the triple dog(bully dog)and the extra power was awesome but i didn't gain any fuel mileage so changed out to ppe hot et 2 and on setting 3 adds extra 160 hp and the fuel mileage went from stock 15.8 to average of 19 to 20 on the highway.if u don't mind spending,the best avalible is efi live.just my experience.
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05 lly dually mods,the mirrors off my 06 2500HD,programmer ppe hot soon to be upgraded to the hot e.t. 2:fart ,ppe boost controller,S&B air intake,dual 4" siverline turbo back exhuast with 5" tip no cats,bully dog shift kit soon to be upgraded to stage v sun coast transmission with triple disc torque converter$$:gearjamin,wish list:teasetwin turbos,dual cp3 fueler,bigger injecters,and so on$$$$