Contents hide 1 2022 Subaru Outback State Emission Testing (U.S. Only) 2 State Emission Testing (U.S. Only) 2022 Subaru Outback State Emission Testing (U.S. Only) State Emission Testing (U.S. Only) WARNING Only use a four-wheel dynamometer when testing an All-Wheel Drive (AWD) model. Testing of an AWD model must NEVER be performed on a single … Continue reading 2022 Subaru Outback State Emission Testing (U.S. Only) Guide