The state I live in uses the OBD port reader test rather than the tailpipe sniffer test. The OBD test basically checks to make sure you don't have any CELs and that all your emissions systems are operating correctly. OBD2 cars ('96 and newer) get this test while all OBD1 cars ('95 and older) get the sniffer test. OBD2 cars with OBD1 conversions, JDM ECUs, and other non-OBD2 engine management will obviously fail the test (this happened to a friend of mine with a '96 Civic with a JDM ITR swap).

I have a '00 Civic Si with the following parts: Icebox, 70mm TB, ITR IM, Prelude 290cc inj, PR3 head milled .020", Mugen head gasket, Skunk2 stage 2 cams (+2, -1), TODA header, high flow cat, 2.5" exhaust, and a Apexi Power FC.

On to my question, would the stock Si ECU be able to run the car with these parts and not throw a code so I can pass emissions?