Standard Heatshield Covered Catalytic Converter (54055) by MagnaFlow. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With Midbed O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet Diameter: 2.25". Catalytic Converter Overall Length: 13". If your car needs replacement, install one that will get you through the smog check. This universal fit converter will require some fabrication to be installed, which will involve cutting the exhaust pipe and may require welding. MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, rather than meets, the highest standards of product performance and efficiency in the industry. MagnaFlow uses Ceramic substrates with different combinations of cell d.  EO# D-193-137 EO# D-193-137