I had the EZ edge for my truck before I even bought it. What is the sense of spending 35K on a truck,and have it underpowered. The other thing is ,next to the stock Duramax,the Cummins/auto is really slow,no comparison as far as acceleration,combined with the loose torque convertor,and its a little sluggish. The EZ wakes it up nice,after 2 weeks it feels like stock again,now add some guages,next add injectors,opps now transmission slips,next drop a wad of money into the transmission,(DTT,the best there is at any price),now add a comp edge,4" exhaust,BHAF,etc... Funny thing is after a while,my truck feels almost stock again,must be time for even more power. It isnt until I take a friend for a ride,that I realize how quick it is,Ive had guys practically rip open my hood to see what apears to be a stock CTD,with an open element air filter.