Oh yea hypertech programmers add torque by producing harder shifts for towing, can change the rev limiter for maximum hp, and it will reprogram your speedometer if you have different size tires, check out their website for more info I'm getting one for my F-150 with a 5.4 if you haven't gotten anything yet I'll let you know if it's really worth it. Btw it's just a programmer not a chip so you can always return the changes back to stock or adjust it at any point if you want to.