I just got all of my stuff put on. When I'm in the 120 setting and dead stopped and punch it the tires grab and squawk and grab again in 2nd but when in 80 or in 120 and don't hammer it it feels like it labors from 0-30 or 40 until it shifts into 2nd. It doesn't throw me back in my seat. When I'm rolling 40-45 and punch it the truck launches and is awesome fast. I just expected more response out of the hole. I called Jody and he said it's the same tunes he has in his 03 excursion. Maybe my hopes were set a little high. The only thing I had to compare it to is my buddy's 6.0. As I read other guys posts and questions I wonder if my oil pump needs to be upagraded. I'm very happy with the top end and it gets there quick when I'm rolling just not what I expected throttle response wise Sorry this is long.