So I am new to the 6.0 diesel world and had a couple of concerns. I just picked up a high mileage 05 f250 to tow my race trailer (7-8k pounds). Truck has 317k miles on it but is a very clean truck inside and out and underneath. It has the egr delete but still has the original head bolts. I am wondering if adding a programmer to it for towing would be a good thing or bad. Only going to use the truck 2-3 days a month. Im not looking for any power gains just something that will help out with towing and maybe get a little better mpg while not towing.