this is garbage, more cons then pros I assure you
when you get the ECU/PCM tuned by people like 5 STAR they fix the throttle response. In normal mode when you hit the fuel the throttle body is limited to a 50% burst then it gradually opens 100%. In the OFFROAD mode when you hit the throttle you get 75% burst then gradually opens to 100%. Also in OFFROAD mode the truck doesn't shift as often, it likes to hold a gear. So shift points are higher even at slow speeds.
Example, slow acceleration may see shift points at 1,800 rpms but OFFROAD and slow acceleration won't shift till like 2,500 rpms. Add in a more aggressive throttle response and it's FUN.
Just get your ECU tuned and you get better throttle response. Not 100% because that's wild but you will have a nice and aggressive pedal. DON"T buy crap parts. Don't go cheap. Don't bring the truck to the dealership unless it's warranty work cause they jack shit up. Don't put big heavy tires on big heavy 20" wheels. Research is helpful