Probably doesn't really matter anymore now that they have the AEM ecu.Ranger498 said:http://www.obdii.com/background.html
15. is any year supra more desirable than others?
not really. 93-95 are more desirable to some because their obd1 ecus are more friendly to ecu upgrades. 96-98 obd2 ecus can be quite useful in logging obd2 engine parameters and more useful error codes although they generate errors if the cats are removed unless an o2 sensor simulator circuit is installed. other than that, there are only minor differences between the model years.