# MagnaFlow 93456 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) for 1982-1993 Buick Commercial Chassis and More ### Performance Overview The Direct Fit Catalytic Converter is designed with a ribbed body that can reduce expansion and distortion when the converters heat up. These ribs holds the ceramic catalyst in a proper position and it also forms a channel that shields the cushioning mat from direct exposure to exhaust gases. The ceramic coating is made for maximum surface area and flow, and the coating method is strictly controlled so that exact ### Key Features - Brand: MagnaFlow - Part number: 93456 - Product type: Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 1991 Buick Commercial Chassis, Note: Base; 5.0L; 2.50"; 2.50" - 1992 Buick Commercial Chassis, Note: Base; 5.7L; 2.50"; 2.50" - 1993 Buick Commercial Chassis, Note: Base; 5.7L; 2.50"; 2.50" - 1991 Buick Roadmaster, Note: Estate Wagon; 5.0L; 2.50"; 2.50" - 1992 Buick Roadmaster, Note: Base, Estate Wagon, Limited; 5.7L; 2.50"; 2.50" - 1993 Buick Roadmaster, Note: Base, Estate Wagon, Limited; 5.7L; 2.50"; 2.50" - 1990 Cadillac Brougham, Note: Base, D'Elegance; 5.7L; 2.50"; 2.50" - 1991 Cadillac Brougham, Note: Base, D'Elegance; 5.0L, 5.7L; 2.50"; 2.50" ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. **What part number is this?** The listed part number is 93456. **Is this product designed for direct replacement?** Yes. This product is intended to match compatible vehicle applications listed in the fitment section. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering. ### Common Searches - Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) for Buick Commercial Chassis - 93456 fitment - MagnaFlow Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) - 1982 Buick Commercial Chassis Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1991 Buick Commercial Chassis Base; 5.0L; 2.50"; 2.50" 1992 Buick Commercial Chassis Base; 5.7L; 2.50"; 2.50" 1993 Buick Commercial Chassis Base; 5.7L; 2.50"; 2.50" 1991 Buick Roadmaster Estate Wagon; 5.0L; 2.50"; 2.50" 1992 Buick Roadmaster Base, Estate Wagon, Limited; 5.7L; 2.50"; 2.50" 1993 Buick Roadmaster Base, Estate Wagon, Limited; 5.7L; 2.50"; 2.50" 1990 Cadillac Brougham Base, D'Elegance; 5.7L; 2.50"; 2.50" 1991 Cadillac Brougham Base, D'Elegance; 5.0L, 5.7L; 2.50"; 2.50" 1992 Cadillac Brougham Base, D'Elegance; 5.0L, 5.7L; 2.50"; 2.50" 1992 Cadillac Commercial Chassis Brougham; 5.7L; 2.50"; 2.50" 1993 Cadillac Commercial Chassis Brougham; 5.7L; 2.50"; 2.50" 1993 Cadillac Fleetwood Base, Brougham; 5.7L; 2.50"; 2.50" 1982 Chevrolet Camaro Z28, Z28 Indianapolis 500 Pace Car; 5.0L; 2.50"; 2.50" 1983 Chevrolet Camaro Berlinetta, Sport, Z28; 2.8L, 5.0L; 2.50"; 2.50" 1984 Chevrolet Camaro Berlinetta, Sport, Z28; 2.8L, 5.0L; 2.50"; 2.50" 1985 Chevrolet Camaro Berlinetta, Iroc-Z, Sport, Z28; 2.8L, 5.0L; 2.50"; 2.50" 1986 Chevrolet Camaro Berlinetta, Iroc-Z, Sport; 2.8L, 5.0L; 2.50"; 2.50" 1987 Chevrolet Camaro Lt, Sport; 2.8L; 2.50"; 2.50" 1988 Chevrolet Camaro Base; 2.8L; 2.50"; 2.50" 1989 Chevrolet Camaro Rs; 2.8L; 2.50"; 2.50" 1990 Chevrolet Camaro Iroc-Z, Rs; 3.1L, 5.0L; 2.50"; 2.50" 1991 Chevrolet Camaro Rs, Z28; 3.1L, 5.0L; 2.50"; 2.50" 1992 Chevrolet Camaro Rs, Rs Heritage Edition, Z28, Z28 Heritage Edition; 3.1L, 5.0L; 2.50"; 2.50" 1983 Chevrolet Caprice Classic; 3.8L, 5.0L; 2.50"; 2.50" 1984 Chevrolet Caprice Classic; 3.8L, 5.0L; 2.50"; 2.50" 1985 Chevrolet Caprice Classic; 5.0L, 5.7L; 2.50"; 2.50" 1986 Chevrolet Caprice Base, Classic, Classic Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1987 Chevrolet Caprice Base, Classic, Classic Brougham, Classic Ls Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1988 Chevrolet Caprice Base, Classic, Classic Brougham, Classic Ls Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1989 Chevrolet Caprice Base, Classic, Classic Brougham, Classic Ls Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1990 Chevrolet Caprice Base, Classic, Classic Brougham, Classic Ls Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1991 Chevrolet Caprice Classic Ltz, Classic; 5.0L, 5.7L; 2.50"; 2.50" 1992 Chevrolet Caprice Classic Ltz, Classic; 5.0L, 5.7L; 2.50"; 2.50" 1993 Chevrolet Caprice Classic Ls, Classic Ltz, Classic; 4.3L, 5.0L, 5.7L; 2.50"; 2.50" 1983 Chevrolet El Camino Base, Conquista, Ss; 3.8L, 5.0L; 2.50"; 2.50" 1984 Chevrolet El Camino Base, Conquista, Ss; 3.8L, 5.0L; 2.50"; 2.50" 1985 Chevrolet El Camino Base, Conquista, Ss; 5.0L; 2.50"; 2.50" 1986 Chevrolet El Camino Base, Conquista, Ss; 5.0L; 2.50"; 2.50" 1987 Chevrolet El Camino Base, Ss; 5.0L; 2.50"; 2.50" 1983 Chevrolet Impala Base; 3.8L, 5.7L; 2.50"; 2.50" 1984 Chevrolet Impala Base; 3.8L, 5.7L; 2.50"; 2.50" 1985 Chevrolet Impala Base; 5.0L, 5.7L; 2.50"; 2.50" 1983 Chevrolet Malibu Classic; 3.8L, 5.0L; 2.50"; 2.50" 1983 Chevrolet Monte Carlo Base, Cl; 3.8L; 2.50"; 2.50" 1984 Chevrolet Monte Carlo Base; 3.8L; 2.50"; 2.50" 1986 Chevrolet Monte Carlo Base, Ls; 5.0L; 2.50"; 2.50" 1987 Chevrolet Monte Carlo Base, Ls; 5.0L; 2.50"; 2.50" 1988 Chevrolet Monte Carlo Base, Ls; 5.0L; 2.50"; 2.50" 1983 GMC Caballero Amarillo, Base, Diablo; 3.8L, 5.0L; 2.50"; 2.50" 1984 GMC Caballero Amarillo, Base, Diablo; 3.8L, 5.0L; 2.50"; 2.50" 1985 GMC Caballero Amarillo, Base, Diablo; 5.0L; 2.50"; 2.50" 1986 GMC Caballero Amarillo, Base, Diablo; 5.0L; 2.50"; 2.50" 1987 GMC Caballero Base, Diablo; 5.0L; 2.50"; 2.50" 1991 Oldsmobile Custom Cruiser Base; 5.0L; 2.50"; 2.50" 1992 Oldsmobile Custom Cruiser Base; 5.0L, 5.7L; 2.50"; 2.50" 1984 Pontiac Bonneville Base, Brougham, Le; 5.0L; 2.50"; 2.50" 1985 Pontiac Bonneville Base, Brougham, Le; 5.0L; 2.50"; 2.50" 1986 Pontiac Bonneville Base, Brougham, Le; 5.0L; 2.50"; 2.50" 1982 Pontiac Firebird Trans Am; 5.0L; 2.50"; 2.50" 1983 Pontiac Firebird Base, S/E, Trans Am; 2.8L, 5.0L; 2.50"; 2.50" 1984 Pontiac Firebird Base, S/E, Trans Am; 2.8L, 5.0L; 2.50"; 2.50" 1985 Pontiac Firebird Base, S/E, Trans Am; 2.8L, 5.0L; 2.50"; 2.50" 1986 Pontiac Firebird Base, S/E, Trans Am; 2.8L, 5.0L; 2.50"; 2.50" 1987 Pontiac Firebird Base, Trans Am; 2.8L, 5.0L; 2.50"; 2.50" 1988 Pontiac Firebird Base; 2.8L, 5.0L; 2.50"; 2.50" 1989 Pontiac Firebird Base, Formula, Trans Am; 2.8L, 5.0L; 2.50"; 2.50" 1990 Pontiac Firebird Base, Formula, Trans Am, Trans Am Gta; 3.1L, 5.0L; 2.50"; 2.50" 1991 Pontiac Firebird Base, Formula, Trans Am, Trans Am Gta; 3.1L, 5.0L; 2.50"; 2.50" 1992 Pontiac Firebird Base, Formula, Trans Am, Trans Am Gta; 3.1L, 5.0L; 2.50"; 2.50" 1984 Pontiac Grand Prix Base, Brougham, Le; 5.0L; 2.50"; 2.50" ## Details - **Price:** 395.52 CAD - **Vendor:** MagnaFlow - **Type:** Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) - **Tags:** 1982 Chevrolet Camaro, 1983 Chevrolet Camaro, 1983 Chevrolet Caprice, 1983 Chevrolet El Camino, 1984 Chevrolet Camaro, 1984 Chevrolet Caprice, 1985 Chevrolet Camaro, 1985 Chevrolet Caprice, 1986 Chevrolet Camaro, 1986 Chevrolet Caprice, 1987 Chevrolet Camaro, 1987 Chevrolet Caprice, 1988 Chevrolet Camaro, 1988 Chevrolet Caprice, 1989 Chevrolet Camaro, 1989 Chevrolet Caprice, 1990 Cadillac Brougham, 1990 Chevrolet Camaro, 1990 Chevrolet Caprice, 1991 Buick Commercial Chassis, 1991 Buick Roadmaster, 1991 Cadillac Brougham, 1991 Chevrolet Camaro, 1991 Chevrolet Caprice, 1992 Buick Commercial Chassis, 1992 Buick Roadmaster, 1992 Cadillac Brougham, 1992 Cadillac Commercial Chassis, 1992 Chevrolet Camaro, 1992 Chevrolet Caprice, 1993 Buick Commercial Chassis, 1993 Buick Roadmaster, 1993 Cadillac Commercial Chassis, 1993 Cadillac Fleetwood, 1993 Chevrolet Caprice, 93456, Auto Parts, Automotive, Catalytic Converter, Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-93456, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 395.52 CAD | In stock | ## Images - MagnaFlow 93456 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) --- > Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-buick-commercial-chassis-catalytic-converter-93456) > Updated: 2026-06-13