This 2.5'' Inlet/Outlet Universal Catalytic Converter equipped with O2 Port and Heat Shield (EPA Compliant).certifications:OBD I , OBD-II , Federal EPA , Non-CARB, material:Stainless steel, restricted states:California, New York, Colorado , Maine, converter type:Universal fit, body shape:Round, inlet/outlet diameter:2.5" inside diameter, body length:11", overall length:15", engine limit:5.9l, oxygen sensor ports:1, substrate:Ceramic, placement on vehicle:Left, placement on vehicle:Right, placement on vehicle:Front, placement on vehicle:Rear, manufacturerpart number:C10O09030, interchange part number:79306,99306HM, warranty:5 years or 50,000 miles limited