I have an 05 quadcab 4x4, 5.9, 5sp and plan on LOTS of towing. I'm thinking, based on the performance, that the computer has beed flashed and is not at the factory settings. I am trying to decide if I should pay the dealer to re-set the computer to stock or spend the money on the quadzilla econo-chip. My main focus is better towing and empty milage. I also want a long engine life. This is a money making truck, not a race car.
any thoughts?

Cowboy