what does the "chip" look like and where does it plug in?
If it plugs into the ecu I.E you pull your memcal out and place that one in, then no as that is the tune (The memcal)
However if this is one of those "chips" that you plug into the intake air temp sensor near the air filter box, it is a 20 cent resistor that will do nothing but harm, throw it in the bin and leave the seller some negative feedback for wasting your time.
And if you got it off Ebay, there is a 99.9% chance it won't do anything. As Dannyboy said, all they do is solder on a 20 cent resistor from Dick Smith and it tricks the ECO into thinking more air is being sucked into your engine than there really is, therefore pumping more fuel into your engine.