I have an 08 6.4 with a Spartan tuner, 600 + HP and 1100 pound feet of torque. It will pull my 9400 pound HC. Would I tune a new truck, maybe. I turned mine because it had 14% fuel in the oil. I would like to see a 6 liter Ecoboost truck. The 3.5 Platinum has 450 HP and 510 TK. Think what a 6 L could have all without the Diesel pollution control. I have a 2.7 EB. It has 325 HP and 400 TK. With high test you can add 20 to 25 HP to that.