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!
C3500 OR K3500 WITH 5.7L OVER 8500LB GVW Y PIPE CONVERTER ASSEMBLY WITH ONE CONVERTER TEST GROUP TGM5.7JPG1EK TIER 1 CA OR NY APPROVED - CARB EXECUTIVE ORDER D280-101 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TEST GROUP OF YOUR VEHICLE. CALL FOR ASSISTANCE IF NEEDED (713)722-9212