Flowmaster Catalytic Converter - Universal - 225 Series - 2.25" Inlet/Outlet - 49 State 20174 Very strong mid-range torque and

Very strong mid-range torque and throttle response

They now offer it in other pans also

2002-2005 Mercury Mountaineer

50 State Legal

Flowmaster Catalytic Converter - Universal - 225 Series - 2.25" Inlet/Outlet - 49 State 20174 Very strong mid-range torque andFlowmaster 49 state universal catalytic converters are designed to meet federal EPA emissions requirements on a wide variety of applications. These high quality catalytic converters are manufactured in the USA, and feature stainless steel outer shell construction for maximum durability. The internal substrate material and precious metal loading have been carefully engineered for maximum efficiency and to avoid MIL (Malfunction Indicator Lamp) code