Yes those chips are nothing more then a resistor in a box. They are junk.Listen, I bought a G-force performance chip for my Taurus Duratec and '05 Focus Duratec. I wanted better fuel mileage since power is adequate for my needs. However, I'm not so sure I want to install them after reading other forums. Whatever the reason I did save them until I had more info. Now I just don't want to mess with them. So if someone wants them let me know! I 'chickened out" for installing them!