Evan Fischer SET-REPN960313 Catalytic Converter Set for 05-09 Pathfinder/Frontier/Xterra Left Right 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/TB6000/31075NN, N/TB6000/31075NN Single (3-bolt welded flange) Inlet | Single (2-bolt welded flange)