Evan Fischer REPF960324 Catalytic Converter for 02-05 Mercury Mountaineer/Ford Explorer 5-year or 50,000-mile limited warranty Emission: 47-State Legal (Cannot Ship to CA or NY or ME) 4 Sensor Ports, Upstream and Downstream Oxygen Sensor Port Location, EPA N/TB6000/30005NN, N/TB6000/63005NN 58.5 in. overall length Dual (2-bolt and 3-bolt spinner flange) Inlet | Single (2-bolt welded flange) Outlet