they guy has print outs from 2/3 diffrent dynos and all are within 2/3 hp of each other.the guy works in a engine shop, and seems to keep his car in good nick, but you will find that 4efte are also a horrible car to drive compared to many other turbo,d cars but people still bother with them. i have driven alot of cars with my work alot of them high end cars and i can honestly say that i would rather drive my 4efe anyday