Thank you. Ok I edited my post after reading your post. It's for another truck, not reprogramming the current one. Thanks
Thanks. Derating? I am not sure what you mean. Does a lower HP engine derate more than a higher hp? I am not quite sure why you brought up...
Thank you. Yes, I understand what you mean. But since I have a choice to buy higher HP, I am trying to understand the concept before I do and...
I read everywhere that Horse Power doesn't matter, it's torque and gear ratio that matter. I have a Freightliner DD15 455HP, 13spd, 3.08 rear...