YITAMOTOR catalytic converter is simply an exhaust emission control device to reduce toxic gases, perfectly fitting for 2007-2009 Jeep Wrangler JK.certifications:OBD I , OBD-II , Federal EPA , Non-CARB, material:Stainless steel, restricted states:California, new york, colorado, maine, fitment type:Direct replacement, inlet type:Dual (2-bolt spinner flange), outlet type:Single (2.5 in. OD, outlet type:3 in. depth), dimensions:41 in. overall length, connection type:2 bolt, oxygen sensor location:Post-catalyst, oxygen sensor ports:4, substrate:Ceramic, placement on vehicle:Front, oem part number:52059930AH, 52059930AG, warranty:5 years or 50,000 miles limited