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 : mag458021 Description : Conv DF 03-04 Exped D/S 4.6L Anticipated Ship Out Time : Approximately 1-2 Days Recommended Use : Converter Warranty : 5 year/50,000 mile External/Internal Exhaust Pipe Material : Stainless Steel CARB Compliant : Y 2899 : Yes 634 : Ceramic 3145 : Specific Catalytic Converter Overall Length : 31 Series : California Catalytic Converter Format : Pre-Catalytic Converter and Main Catalytic Converter Exhaust Component Mount Type : Uses Factory Hangers California Air Board Approved : Yes CAT Converter Air Tube Adapter : Not Air Tube Kit Adaptable Converter Body Size : OEM Core Substrate Material : Ceramic Emission : California Inlet Size (in.) : OE Main Piping Diameter (in.) : Stainless Steel Material : Stainless Steel Outlet Size (in.) : OE Overall Length (in.) : 31 Universal Or Specific Fit : Specific Inlet Inside Diameter (in.) : OE Outlet Outside Diameter (in.) : OE California Proposition 65 : No Title : DF Converter WARNING CA Proposition 65 : No California Proposition 65 : WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov Catalytic Converter Air Tube Adapter : Not Air Tube Kit Adaptable Outlet Outside Diameter : OE Substrate Material : Ceramic California Air Resources Board Approved : Yes Inlet Inside Diameter : OEM 2003-2004 Ford Expedition Eddie Bauer V8.-cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 2004 Ford Expedition NBX V8.-cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 2004 Ford Expedition XLS V8.-cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 2003-2004 Ford Expedition XLT V8.-cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 2004 Ford Expedition XLT Sport V8.-cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit