hondata is a company that reprograms the ecu...if I remember right it is one where you send in the computer and tell them what you have done to the car and they adjust stuff like the fuel flow map...etc to get the most out of the car
most of the 'chips' you see for sell like on ebay are just crap...i would only recommend dealing with hondata or jet...no one else.
JET Performance Products, Import & Domestic Performance, Performance Kits, Fuel Systems, Transmissions
that way you dont fry your ecu with an overpriced resisiter placed in a black plastic box and sold as a chip!