Evan Fischer REPF960320 Catalytic Converter for Left Side Fits 03-04 Ford Expedition 5.4L SOHC 5-year or 50,000-mile limited warranty Emission: 47-State Legal (Cannot Ship to CA or NY or ME) 2 Sensor Ports, Upstream and Downstream Oxygen Sensor Port Location, EPA N/TB6000/31085NN, N/TB6000/63005NN 35.5 in. Overall Length Single (2-bolt welded flange) Inlet | Single (2.5 in. OD) Outlet