Evan Fischer REPN960332 Catalytic Converter for 02-06 Nissan Altima Base/S/SL Rear 5-year or 50,000-mile limited warranty Emission: 47-State Legal (Cannot Ship to CA or NY or ME) 1 Sensor Port, Upstream Oxygen Sensor Port Location, EPA N/TB6000/63005NN 40.5 in. overall length Single (2-bolt welded flange) Inlet | Single (2-bolt welded flange) Outlet