last night i made the deal to get my first diesel, im really impressed with the truck so far and seems ford did a excellent job. i stay on the road about 90% of time and needed a truck that really reliable and i can optimize mpg outta, i really wanna change the exhaust and replace it with one that just has a muffler and i see the truck has enough power so if a tuner is needed i dont wanna add anymore power, just like it came from the factory without the exhaust emissions stuff and thats it. im sure this has been talked about before and been beatin to death so any kind of help is appreciated