Hey gents. I appreciate the level of knowledge I'm gaining from reading the posts on the forum. I'm new to the diesel world and still not sure of what is and isn't a good idea. I have been reading about different engine programmers and monitors. I see alot of you monitoring EGT and Trans temps and several other things during long hauls. So I'm now curious about the warrnaty. Does using a scanner void the warranty. On my old gas engine I had an Edge Evolution and it stores the stock program and can return the engine to stock if necessary. I was told that before having any work done on my old truck to return it to stock and reset everything, that way the reader didn't show an after market tune. I'm looking at the Edge Evolution CTS2 for my 2016 F250 6.7L. That being said, Q1. Anyone using one? Q2. Are the gains real and worth it? Q3. Does the warranty become void, and can they tell if a program has been used and returned to stock? Then of course any other information anyone wishes to offer is appreciated as always. God Bless.