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!
RABBIT WITH 2.5L UNDERBODY CONVERTER ASSEMBLY BOLTS TO ENGINE HAS 2 O2 SENSOR PORTS ONE IN MIDDLE OF CONVERTER AND ONE BEHIND THE CONVERTER TEST GROUP 9VWXV02.5253 LEV2 ULEV OR 9VWXV02.5U35 LEV2 ULEV CALIFORNIA APPROVED - CARB COMPLIANT EO NUMBER D798-10 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TEST GROUP OF YOUR VEHICLE. CALL FOR ASSISTANCE IF NEEDED (713)722-9212