MagnaFlow 49742 - Catalytic Converter Fits select: 2003 AUDI RS6

OEM Grade Catalytic Converter (49742) by MagnaFlow. Converter Configuration: Direct Fit. Position: Driver Side. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". Catalytic Converter Overall Length: 42.4". If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly replace the factory unit, with little or no fabrication required. 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 density and wall thic. EO# D-193-137 EO# D-193-137