Posts Tagged: Is ECU tuning legal

Is ECU tuning legal in the U.S.?

ECU tuning is considered emissions tampering and is illegal in the U.S. and Canada The EPA Clean Air Act is the controlling authority on whether you can alter the ECU, not your local emissions laws ECU tuning, or modifying the software in the ECU to obtain better performance, is considered tampering, and is illegal throughout the U.S. and Canada and most other countries. Any modification to the ECU that changes the way the engine burns fuel and increases emissions, is illegal. It doesn’t matter if your ECU-tuned vehicle passes the … Read More