I have 2012 6.7. I was given a bullydog 40420 tuner and I have been happy with it so far. Went from 12.4 mph to 19mpg. Until I found out that this particular tuner doesn't do the deletes. The 40428 thats band from the States does. I bought the EGR Delete kit and found this out. I was told that I can do the delete but just tie up the EGR up to the side of the engine compartment. So it wouldn't throw codes. Has anyone done this or heard of it?