I have one wired up, will get videos up soon. Basically, it takes the power wire for the map sensor and puts it right over into the signal wire to the ecm, thus, the ecm thinks it is seeing like 30psi of boost at 0 psi of boost, therefore more fuel down low. I wired mine up with speaker wire because it is allready two wires together, fully insulated, and I have a nice switch on the dash for it. Fortunately, a more stable fuel system.... lol.
I heard it adds another 10hp on the bottom end, and some torque. Sometimes I think it makes the turbo lag more... if that makes sense.