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 : mag23482 Description : Conv DF GM 90 91 Main Piping Diameter : 2 Material : Stainless Series : Standard 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 Oxygen Sensor Location : Pre and Post Converter Catalytic Converter Body Material : Stainless Catalytic Converter Substrate Material : Ceramic Catalytic Converter Inlet Diameter : 2 Catalytic Converter Outlet Diameter : 2 Catalytic Converter Width : 5 Catalytic Converter Length : 12 Catalytic Converter Configuration : Direct-Fit Exhaust Component Mount Type : Uses Factory Hangers Exhaust Pipe Material : Stainless Steel Recommended Use : Converter Warranty : 5 year/50,000 mile External, 2 years/25,000 miles Internal Components : Gasket=2 2899 : No 634 : Ceramic 601 : 2 1172 : 2 616 : 5 615 : 12 3145 : Specific 353 : Yes Catalytic Converter Overall Length : 20 Body Length (in.) : 12 California Air Board Approved : No CAT Converter Air Tube Adapter : Not Air Tube Kit Adaptable Converter Body Size : OEM Core Substrate Material : Ceramic Emission : Non-California (49-State) Heat Shield Attached : No Inlet Size (in.) : 2 Main Piping Diameter (in.) : Stainless Steel Material : Stainless Steel Outlet Quantity : 1 Outlet Size (in.) : 2 Overall Length (in.) : 20 Oxygen Sensor Location : Pre and Post Converter Universal Or Specific Fit : Specific Body Width (in.) : 5 Gasket Or Seal Included : Yes Inlet Inside Diameter (in.) : 2 Outlet Outside Diameter (in.) : 2 Title : DF Converter WARNING CA Proposition 65 : No California Proposition 65 : WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov Body Length : 12.000 in. Outlet Outside Diameter : 2 Body Length : 12 California Air Resources Board Approved : No Substrate Material : Ceramic Inlet Inside Diameter : 2 Body Width : 5 Inlet Inside Diameter : 2.000 in. 1990-1991 Buick Skylark Base L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1990-1991 Buick Skylark Custom L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1990-1991 Buick Skylark Gran Sport L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1990-1991 Buick Skylark Luxury Edition L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1990-1991 Oldsmobile Cutlass Calais Base L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1990-1991 Oldsmobile Cutlass Calais GT L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1990-1991 Oldsmobile Cutlass Calais S L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1990-1991 Pontiac Grand Am LE L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit 1991 Pontiac Grand Am Value Leader L4.2474cc Exhaust, Mufflers & Tips::Catalytic Converter Direct Fit