I'm not sure the best route to add some power with the 5.4 n/a engine. I would say a chip would add a little but you need to run premium fuel. There's full exhaust, throttle body and other nic-nac things. It get's pricey. Then a dyno tune would bring out the best. That's another $300 or so dollars. Id say just leave it as is. My cousin has a f250 superduty. It has a good bit of power. It pulls a trailor pretty much 99% of the time. Very good engine and drivetrain combo.