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 off the Direct-Fit Catalytic converter products do not require welding; cutting or bending; limited applications may require additional welding for optimal installation. PartNumber : mag452789 Description : Conv DF BMW 5-6 04-05 D/S OEM Catalytic Converter Air Tube Adapter : Not Air Tube Kit Adaptable Main Piping Diameter : 2.25 Material : Stainless Series : California Anticipated Ship Out Time : Approximately 1-2 Days CARB Compliant : Y Catalytic Converter Width : 5 Catalytic Converter Length : 6.2 Catalytic Converter Format : Pre-Catalytic Converter and Main Catalytic Converter Catalytic Converter Oxygen Sensor Location : Pre and Post Converter Catalytic Converter Body Material : Stainless Catalytic Converter Substrate Material : Ceramic Catalytic Converter Inlet Diameter : 2.5 Catalytic Converter Outlet Diameter : 2.25 Exhaust Pipe Material : Stainless Steel Recommended Use : Converter Catalytic Converter Overall Length : 6.2 Catalytic Converter Configuration : Direct-Fit Exhaust Component Mount Type : Uses Factory Hangers Exhaust Inlet Connection Type : Bolt-On Exhaust Outlet Connection Type : Bolt-On Warranty : 5 year/50K miles External/Internal Components : Bolt=2;Gasket=4;Nut=2 CARB Compliant : Yes Body Length (in.) : 6.2 CAT Converter Air Tube Adapter : Not Air Tube Kit Adaptable CAT Converter Configuration : Direct-Fit Converter Body Size : OEM Core Substrate Material : Ceramic Emission : California Inlet Size (in.) : 2.5 Main Piping Diameter (in.) : Stainless Steel Material : Stainless Steel Outlet Size (in.) : 2.25 Overall Length (in.) : 29.7 Oxygen Sensor Location : Pre and Post Converter Body Width (in.) : 5 Inlet Connection Type : Bolt-On Inlet Inside Diameter (in.) : 2.5 Outlet Connection Type : Bolt-On Outlet Outside Diameter (in.) : 2.25 Inlet Diameter : 2.5 Outlet Diameter : 2.5 in. California Proposition 65 : No Title : DF Converter WARNING CA Proposition 65 : No California Proposition 65 : WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov Body Length : 6.200 in. Outlet Outside Diameter : 2.25 Catalytic Converter Overall Length : 29.7 Components : Bolt=2 Inlet Inside Diameter : 2.500 in. 2004-2005 BMW 545i Base V8.4398cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 2004-2005 BMW 645Ci Base V8.4398cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 2004-2005 BMW 745i Base V8.4398cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 2004-2005 BMW 745Li Base V8.4398cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit