On my 03 that I had, Edge Ez, 5 inch exhaust, AFE, I developed a loud popping under full throttle. If I stayed in it it would be followed by white smoke. I unplugged the EZ and the problem went away. I got ahold of EZ tech line, explained what was going on. They had me send the EZ in and sent me a new one. I put it on and took the truck for a drive, same thing!
I took it to my dealer and explained the problem. After a load of tests it was decided it was an injector. They put in 3 injectors and the problem was solved. And yes I took it in with the Ez on. My dealer is not of the box kills the warranty gang.