Power Chipz ???
I have never heard of Powerchipz.
Actually you might be better off with a hand held tuner that has different files to suit your needs. The newer LSX tunes have been proven in GMHTP to give about 12-18 hp to the tire on a car that had a Locked PCM and a aftermarket Lid.
Results were all with in range, nothing drastically different from one company to another.



