A faulty Oxygen Sensor is a primary reason for Failure of a Catalytic Converter. Car Manufacturers Recommend Replacement of O2 Sensors at 60,000 miles. If you are purchasing a New Catalytic Converter be sure the Oxygen Sensors are Checked and Operating Correctly!
FORESTER WITH 2.5L TURBOCHARGED REAR CONVERTER UNDER BODY TEST GROUP 6FJXV02.5PRA LEV LEV2 OR 6FJXX02.5MTC LEV LEV2 CALIFORNIA OR NY APPROVED - CARB COMPLIANT PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TE