Honestly I have not tested for emissions as they are not required in my area. Keeping the boost down should keep you safe. I have been trying more and more to include the stock chip with the ECU incase you need to revert back to stock for testing purposes, I have not always done this in the past. If you need a stock chip please let me know and I will get one out to you. If it was purchased recently check the inside cover of the ECU I may have taped it there in a protective housing.