Anybody heard of this thing or can vouch as to whether it works or not? I think I saw somebody auctioning them off on e-bay and was curious to know if anybody's tried one yet.

peace2u

 

If you saw it on ebay, then most likely it's a little box with a resistor in it. And then they call it a chip. All it does is change the resistance of some sensors so that the motor thinks it needs more fuel. I bet you found it for either $1 or $15. It's probably crap. Give us a link.