First off.... Welcome to the site! I agree with the previous 2 posters. They were spot on. The tuner of choice for the 6.0L is the SCT with custom tuning. It is a better tuner for your motor and your tranny. There are many threads here that compare it to the other tuners or programmers and it always wins hands down. It is not a "shift on the fly" but trust me you will not need it. You will have and want everything you can dream of at the end of your right leg whenever you want it, all you gotta do is push the skinny pedal! LOL The stock intake on the 6.0L is fine for most application unless you are going to get into high horsepower, such as bigger injectors and/or turbos. It will flow plenty of air for stock parts. If you start adding bigger injectors/turbos then that is a different story. Have fun modding your truck and please feel free to ask all the questions you like and enjoy the site! Good luck in your search for knowledge and power!