No, it wouldn't say 97 GSR becuase they don't hook anything up to your ECU. I used to work at a used car dealership and i would take cars to get smogged all the time, i know the guy and the whole process. All they test for is emissions. They hook up a sensor to your exhaust, test that, check your idle, gas cap, and some other small shit, i forgot though. I know in california its legal to swap a motor if its at least the same year as your car or higher, and at least the same OBD or higher. Its supposed to be the "equivilent" but I've never heard of anyone with a smog legal car with a swapped motor having problems with a referee. Once the ref checks your car and says its OK, he puts a metal stamp on the engine bay so when dick head cops pull you over and pop your hood you don't get a fix it ticket.