WILL WORK FOR 92-93 GS-R B17 motor as well. You might ask yourself why do i want to convert from obd2 to obd1 and upgrade my ecu? i can give you tons of reasons for starters it will give you more hp and torque because hondas comes detuned from the factory for more mature drivers and all 1996+ and up ecus are obd2 and much more restrictive and cannot be chipped. they also look for more sensors like secondary o2 sensor and crank sensor and knock sensors, egr so with this you will have less problems and check engine lights. so converting to obd1 allows you to run a more aggressive program with advanced fuel and ignition mappings so you get better throttle response, harder vtec kick and no top speed limiter and thats just the beginning, also obd2 ecus cannot be tuned without a piggyback which is not as good as making adjustments so its better to use ecu for tuning rather than a piggyback. i have built up a large and wide collection of Basemaps and Performance map Bins over the last 15 years and we do custom mappings for your setup with Dyno Proven Results, dont buy cheap imitation chips chips on ebay that are dangerous and can damage your engine we do thorough testing and use simulators and street tune so you know your getting the best!