# MagnaFlow 93431 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) for 1976-1980 Buick Century 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: 93431 - Product type: Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 1978 Buick Century, Note: Custom, Limited, Special, Sport; 3.8L, 5.0L, 5.7L; 2.50"; 2.50" - 1979 Buick Century, Note: Custom, Limited, Special, Sport; 3.8L, 5.0L, 5.7L; 2.50"; 2.50" - 1980 Buick Century, Note: Base, Estate, Limited, Sport; 3.8L, 4.9L; 2.50"; 2.50" - 1976 Buick Electra, Note: 225, Limited; 5.7L; 2.50"; 2.50" - 1977 Buick Electra, Note: 225, Limited; 5.7L, 6.6L; 2.50"; 2.50" - 1978 Buick Electra, Note: 225, Limited, Park Avenue; 5.7L, 6.6L; 2.50"; 2.50" - 1979 Buick Electra, Note: 225, Limited, Park Avenue; 5.7L, 6.6L; 2.50"; 2.50" - 1980 Buick Electra, Note: Estate Wagon, Limited, Park Avenue; 4.1L, 4.9L, 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 93431. **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 Century - 93431 fitment - MagnaFlow Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) - 1976 Buick Century Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1978 Buick Century Custom, Limited, Special, Sport; 3.8L, 5.0L, 5.7L; 2.50"; 2.50" 1979 Buick Century Custom, Limited, Special, Sport; 3.8L, 5.0L, 5.7L; 2.50"; 2.50" 1980 Buick Century Base, Estate, Limited, Sport; 3.8L, 4.9L; 2.50"; 2.50" 1976 Buick Electra 225, Limited; 5.7L; 2.50"; 2.50" 1977 Buick Electra 225, Limited; 5.7L, 6.6L; 2.50"; 2.50" 1978 Buick Electra 225, Limited, Park Avenue; 5.7L, 6.6L; 2.50"; 2.50" 1979 Buick Electra 225, Limited, Park Avenue; 5.7L, 6.6L; 2.50"; 2.50" 1980 Buick Electra Estate Wagon, Limited, Park Avenue; 4.1L, 4.9L, 5.7L; 2.50"; 2.50" 1980 Buick Estate Wagon Base; 4.9L, 5.7L; 2.50"; 2.50" 1977 Buick Lesabre Base, Custom, Custom Sport; 3.8L, 4.9L, 5.7L, 6.6L; 2.50"; 2.50" 1978 Buick Lesabre Base, Custom, Sport; 3.8L, 4.9L, 5.0L, 5.7L, 6.6L; 2.50"; 2.50" 1979 Buick Lesabre Base, Limited, Sport; 3.8L, 4.9L, 5.7L; 2.50"; 2.50" 1980 Buick Lesabre Base, Limited, Sport; 3.8L, 4.9L, 5.7L; 2.50"; 2.50" 1978 Buick Regal Base, Limited, Sport; 3.8L, 5.0L; 2.50"; 2.50" 1979 Buick Regal Base, Limited, Sport; 3.8L, 5.0L; 2.50"; 2.50" 1980 Buick Regal Base, Limited, Sport; 3.8L; 2.50"; 2.50" 1977 Buick Riviera Base; 5.7L, 6.6L; 2.50"; 2.50" 1978 Buick Riviera Base, Lxxv Anniversary Edition; 5.7L, 6.6L; 2.50"; 2.50" 1979 Buick Riviera Base, S; 3.8L, 5.7L; 2.50"; 2.50" 1980 Buick Riviera Base, S; 3.8L; 2.50"; 2.50" 1977 Cadillac Deville Base, D'Elegance; 7.0L; 2.50"; 2.50" 1978 Cadillac Deville Base, Cabriolet, D'Elegance, Phaeton; 7.0L; 2.50"; 2.50" 1979 Cadillac Deville Base, Cabriolet, D'Elegance, Phaeton; 7.0L; 2.50"; 2.50" 1980 Cadillac Deville Base, Cabriolet, D'Elegance; 4.1L, 6.0L; 2.50"; 2.50" 1979 Cadillac Eldorado Base, Biarritz, Cabriolet; 5.7L; 2.50"; 2.50" 1980 Cadillac Eldorado Base, Biarritz, Cabriolet; 5.7L; 2.50"; 2.50" 1977 Cadillac Fleetwood 75, 75 Formal, Brougham, Formal; 7.0L; 2.50"; 2.50" 1978 Cadillac Fleetwood Base, Brougham, Brougham D'Elegance, Formal; 7.0L; 2.50"; 2.50" 1979 Cadillac Fleetwood Base, Brougham, Brougham D'Elegance, Formal; 7.0L; 2.50"; 2.50" 1980 Cadillac Fleetwood Base, Brougham, Brougham D'Elegance, Formal; 4.1L, 6.0L; 2.50"; 2.50" 1977 Cadillac Seville Base, Opera; 5.7L; 2.50"; 2.50" 1978 Cadillac Seville Base, Elegante, Opera; 5.7L; 2.50"; 2.50" 1979 Cadillac Seville Base, Elegante; 5.7L; 2.50"; 2.50" 1980 Cadillac Seville Base, Elegante; 5.7L, 6.0L; 2.50"; 2.50" 1980 Chevrolet Camaro Base, Berlinetta, Rally Sport, Z28; 3.8L, 5.0L, 5.7L; 2.50"; 2.50" 1977 Chevrolet Caprice Classic, Classic Estate, Classic Landau; 4.1L, 5.0L, 5.7L; 2.50"; 2.50" 1978 Chevrolet Caprice Classic, Classic Estate, Classic Landau; 4.1L, 5.0L, 5.7L; 2.50"; 2.50" 1979 Chevrolet Caprice Classic, Classic Landau, Classic Sport; 4.1L, 5.0L, 5.7L; 2.50"; 2.50" 1980 Chevrolet Caprice Classic, Classic Landau, Classic Sport; 4.4L, 5.0L, 5.7L; 2.50"; 2.50" 1978 Chevrolet El Camino Base, Conquista, Ss; 5.7L; 2.50"; 2.50" 1979 Chevrolet El Camino Base, Royal Knight, Ss; 5.0L, 5.7L; 2.50"; 2.50" 1977 Chevrolet Impala Base, Custom, Landau; 4.1L, 5.0L, 5.7L; 2.50"; 2.50" 1978 Chevrolet Impala Base, Landau; 4.1L, 5.0L, 5.7L; 2.50"; 2.50" 1979 Chevrolet Impala Base, Landau, Sport; 4.1L, 5.0L, 5.7L; 2.50"; 2.50" 1980 Chevrolet Impala Base, Sport; 4.4L, 5.0L, 5.7L; 2.50"; 2.50" 1978 Chevrolet Malibu Base, Classic, Classic Estate, Classic Landau; 5.7L; 2.50"; 2.50" 1979 Chevrolet Malibu Base, Classic, Classic Estate, Classic Landau, Classic Sport, Estate, Landau, Police, Sport; 5.0L, 5.7L; 2.50"; 2.50" 1980 Chevrolet Malibu Base, Classic, Classic Estate, Classic Landau, Classic Sport, Estate, Sport; 5.0L; 2.50"; 2.50" 1979 Chevrolet Monte Carlo Base, Landau; 5.0L; 2.50"; 2.50" 1980 Chevrolet Monte Carlo Landau, Sport; 5.0L; 2.50"; 2.50" 1978 GMC Caballero Base, Diablo, Laredo; 5.7L; 2.50"; 2.50" 1979 GMC Caballero Base, Diablo, Laredo; 5.0L, 5.7L; 2.50"; 2.50" 1977 Oldsmobile 98 Luxury, Regency; 5.7L, 6.6L; 2.50"; 2.50" 1978 Oldsmobile 98 Luxury, Regency; 5.7L, 6.6L; 2.50"; 2.50" 1979 Oldsmobile 98 Luxury, Regency; 5.7L, 6.6L; 2.50"; 2.50" 1977 Oldsmobile Custom Cruiser Base; 5.7L, 6.6L; 2.50"; 2.50" 1978 Oldsmobile Custom Cruiser Base; 5.7L, 6.6L; 2.50"; 2.50" 1979 Oldsmobile Custom Cruiser Base; 5.7L, 6.6L; 2.50"; 2.50" 1978 Oldsmobile Cutlass Vista Cruiser; 5.0L, 5.7L; 2.50"; 2.50" 1979 Oldsmobile Cutlass Vista Cruiser, Vista Cruiser Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1980 Oldsmobile Cutlass Base, Brougham, Ls; 5.0L; 2.50"; 2.50"; Without Air Conditioning 1978 Oldsmobile Cutlass Calais Base; 5.0L; 2.50"; 2.50" 1979 Oldsmobile Cutlass Calais Base; 5.0L, 5.7L; 2.50"; 2.50" 1980 Oldsmobile Cutlass Calais Base; 5.0L; 2.50"; 2.50"; Without Air Conditioning 1978 Oldsmobile Cutlass Salon Base, Brougham; 5.0L; 2.50"; 2.50" 1979 Oldsmobile Cutlass Salon 442, Base, Brougham, Hurst; 5.0L, 5.7L; 2.50"; 2.50" 1980 Oldsmobile Cutlass Salon Base, Brougham; 5.0L; 2.50"; 2.50" 1978 Oldsmobile Cutlass Supreme Base, Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1979 Oldsmobile Cutlass Supreme Base, Brougham; 5.0L, 5.7L; 2.50"; 2.50" 1977 Oldsmobile Delta 88 Base, Royale; 5.7L, 6.6L; 2.50"; 2.50" ## Details - **Price:** 433.69 CAD - **Vendor:** MagnaFlow - **Type:** Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) - **Tags:** 1976 Buick Electra, 1977 Buick Electra, 1977 Buick Lesabre, 1977 Buick Riviera, 1977 Cadillac Deville, 1977 Cadillac Fleetwood, 1977 Cadillac Seville, 1978 Buick Century, 1978 Buick Electra, 1978 Buick Lesabre, 1978 Buick Regal, 1978 Buick Riviera, 1978 Cadillac Deville, 1978 Cadillac Fleetwood, 1978 Cadillac Seville, 1979 Buick Century, 1979 Buick Electra, 1979 Buick Lesabre, 1979 Buick Regal, 1979 Buick Riviera, 1979 Cadillac Deville, 1979 Cadillac Eldorado, 1979 Cadillac Fleetwood, 1979 Cadillac Seville, 1980 Buick Century, 1980 Buick Electra, 1980 Buick Estate Wagon, 1980 Buick Lesabre, 1980 Buick Regal, 1980 Buick Riviera, 1980 Cadillac Deville, 1980 Cadillac Eldorado, 1980 Cadillac Fleetwood, 1980 Cadillac Seville, 1980 Chevrolet Camaro, 93431, Auto Parts, Automotive, Catalytic Converter, Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD), Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-93431, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 433.69 CAD | In stock | ## Images - MagnaFlow 93431 Direct Fit Standard Catalytic Converter (2.5" ID/2.5" OD) --- > Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-buick-century-catalytic-converter-93431) > Updated: 2026-06-13