Evan Fischer REPC960306 Catalytic Converter for 03-08 Express 1500/2500 Savana 1500/2500 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/TB6000/63005NN 64 in. overall length Dual (3-bolt spinner and 3-bolt welded flange) Inlet | Single (2-bolt welded flange) Outlet