MagnaFlow Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority of the Direct-Fit Catalytic Converter products do not require welding; cutting or bending; limited applications may require additional welding for optimal installation. PartNumber : mag51084 Description : Conv DF 01-03 Audi S8 4.2L D/S Main Piping Diameter : 2.5 Catalytic Converter Oxygen Sensor Location : Pre and Post Converter Catalytic Converter Body Material : Stainless Material : Stainless Series : OEM Grade Anticipated Ship Out Time : Approximately 1-2 Days CARB Compliant : N Catalytic Converter Air Tube Adapter : Not Air Tube Kit Adaptable Catalytic Converter Format : Pre-Catalytic Converter and Main Catalytic Converter Catalytic Converter Overall Length : 11 Catalytic Converter Configuration : Direct-Fit Catalytic Converter Substrate Material : Ceramic Catalytic Converter Inlet Diameter : 2.5 Catalytic Converter Outlet Diameter : 2.5 Catalytic Converter Width : 5.1 Catalytic Converter Length : 11 Components : Nut=1 Exhaust Component Mount Type : Uses Factory Hangers Exhaust Inlet Connection Type : Bolt-On Exhaust Outlet Connection Type : Clamp-On Exhaust Pipe Material : Stainless Steel Recommended Use : Converter Warranty : 5 year/50,000 mile External, 2 years/25,000 miles Internal 2899 : No 634 : Ceramic 601 : 2.5 1172 : 2.5 616 : 5.1 615 : 11 3145 : Specific California Air Board Approved : No CAT Converter Air Tube Adapter : Not Air Tube Kit Adaptable Converter Body Size : OEM Core Substrate Material : OEM Emission : Non-California (49-State) Inlet Size (in.) : 2.5 Main Piping Diameter (in.) : Stainless Steel Material : Stainless Steel Outlet Quantity : 1 Outlet Size (in.) : 2.5 Overall Length (in.) : 28.6 Oxygen Sensor Location : Pre and Post Converter Universal Or Specific Fit : Specific Body Length (in.) : 11 Body Width (in.) : 5.1 Inlet Connection Type : Bolt-On Inlet Inside Diameter (in.) : 2.5 Outlet Connection Type : Clamp-On Outlet Outside Diameter (in.) : 2.5 Title : DF Converter WARNING CA Proposition 65 : No California Proposition 65 : WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov Body Length : 11.000 in. Outlet Outside Diameter : 2.5 Inlet Inside Diameter : 2.5 Body Width : 5.1 California Air Resources Board Approved : No Substrate Material : Ceramic Body Length : 11 Catalytic Converter Overall Length : 28.6 Inlet Inside Diameter : 2.500 in. 2001-2003 Audi S8 Base V8.4172cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit