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!
YUKON XL 2500 WITH 8.1L PASSENGER SIDE TEST GROUP 1GMXA08.1201 LEV1 LEV CA OR NY APPROVED - CARB EXECUTIVE ORDER D193-103 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TEST GROUP OF YOUR VEHICLE. CALL FOR ASSISTANCE IF NEEDED (713)722-9212 F YOUR VEHICLE. CALL FOR AS