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 : mag22951 Description : Conv Direct Fit Golf 90-92 Anticipated Ship Out Time : Approximately 1-2 Days Exhaust Pipe Material : Stainless Steel Recommended Use : Converter 634 : Ceramic 3145 : Specific Main Piping Diameter : 1.75 Material : Stainless Series : Standard 2899 : No Catalytic Converter Format : Pre-Catalytic Converter and Main Catalytic Converter Catalytic Converter Body Material : Stainless Exhaust Component Mount Type : Uses Factory Hangers 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.) : OE Main Piping Diameter (in.) : Stainless Steel Material : Stainless Steel Outlet Size (in.) : OE Overall Length (in.) : OEM Universal Or Specific Fit : Specific Inlet Inside Diameter (in.) : OE Outlet Outside Diameter (in.) : OE 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 Substrate Material : Ceramic California Air Resources Board Approved : No Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit