You won't find chips for OBD2 either, even hondata requires an OBD1 ECU. The OBD2 computers comply with tougher 1996+ emmissions standards. OBD2 will at times, adjust the engine fuel/timing to reduce emmisions, say in the case of a bad 02 sensor. You can reset it back to stock for a time by resetting it.

The internals have not been as comprehensivly reveresed, as have the older OBD1 series stuff. Also electronically the OBD2 ECU is much more complex, and it uses an expensive CPU, making chipping even more involved.

-PHiZ