Back when I was still running a superchip on my 7.3 I bought Edge's EZ ICP box. I was told I could stack it on and gain even more horsepower. Oddly enough the opposite happened! I had my buddy's g-tech in my truck and did some 0-60s before and after the install. My times increased by almost 2 seconds each time and I quickly removed it and called edge. They gave me some reason about it starving the engine of oil or something like that. I was lost, so I sent it back. It was a $325 waste....So needless to say I won't be buying edge stuff anytime soon...i'll stick with my TS chip