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Everything you need to know about Catalytic Converters.
Discount Converters LTD.
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2003 BMW 330 Discount Catalytic Converters
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!
330ci WITH 3.0L FRONT MANIFOLD CONVERTER TEST GROUP 3BMXV03.0M5R LEV LEV1 CA OR NY APPROVED - CARB COMPLIANT D193-106 PER CALIFORNIA AND NEW YORK REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TEST GROUP OF YOUR VEHICLE. CALL FOR ASSISTANCE IF NEEDED.