# MagnaFlow 448309 California Universal Catalytic Converter (3" ID/3" OD) for 1996-2002 Buick Lesabre and More ### Performance Overview Magnaflow's California Catalytic Converter is designed to be CARB compliant. The catalytic converter's ribbed body is designed to minimize distortion and expansion of the body to hold the ceramic catalyst in place. magnaflow's Catalytic Converters are made of stainless steel and are backed by their limited lifetime warranty. ### Key Features - Brand: MagnaFlow - Part number: 448309 - Product type: California Universal Catalytic Converter (3" ID/3" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 1997 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00" - 1998 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00" - 1999 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00" - 2000 Buick Lesabre, Note: Custom, Limited; 3.8L; 3.00"; 3.00" - 1997 Buick Park Avenue, Note: Base, Ultra; 3.8L; 3.00"; 3.00" - 1998 Buick Park Avenue, Note: Base, Ultra; 3.8L; 3.00"; 3.00" - 1999 Buick Park Avenue, Note: Base, Ultra; 3.8L; 3.00"; 3.00" - 2000 Buick Park Avenue, Note: Base, Ultra; 3.8L; 3.00"; 3.00" ### 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 448309. **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 - California Universal Catalytic Converter (3" ID/3" OD) for Buick Lesabre - 448309 fitment - MagnaFlow California Universal Catalytic Converter (3" ID/3" OD) - 1996 Buick Lesabre California Universal Catalytic Converter (3" ID/3" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1997 Buick Lesabre Custom, Limited; 3.8L; 3.00"; 3.00" 1998 Buick Lesabre Custom, Limited; 3.8L; 3.00"; 3.00" 1999 Buick Lesabre Custom, Limited; 3.8L; 3.00"; 3.00" 2000 Buick Lesabre Custom, Limited; 3.8L; 3.00"; 3.00" 1997 Buick Park Avenue Base, Ultra; 3.8L; 3.00"; 3.00" 1998 Buick Park Avenue Base, Ultra; 3.8L; 3.00"; 3.00" 1999 Buick Park Avenue Base, Ultra; 3.8L; 3.00"; 3.00" 2000 Buick Park Avenue Base, Ultra; 3.8L; 3.00"; 3.00" 2001 Buick Park Avenue Base, Ultra; 3.8L; 3.00"; 3.00" 2002 Buick Park Avenue Base, Ultra; 3.8L; 3.00"; 3.00" 1997 Buick Riviera Base; 3.8L; 3.00"; 3.00" 1998 Buick Riviera Base; 3.8L; 3.00"; 3.00" 1999 Buick Riviera Base; 3.8L; 3.00"; 3.00" 1996 Chevrolet S10 Base, Ls, Ss, Zr2; 4.3L; 3.00"; 3.00" 1996 GMC Sonoma Sl, Sle, Sls; 4.3L; 3.00"; 3.00" 1997 Oldsmobile 88 Royale, Royale Ls; 3.8L; 3.00"; 3.00" 1998 Oldsmobile 88 Royale, Royale Ls; 3.8L; 3.00"; 3.00" 1999 Oldsmobile 88 50Th Anniversary Edition, Royale, Royale Ls; 3.8L; 3.00"; 3.00" 1996 Oldsmobile Aurora Base; 4.0L; 3.00"; 3.00" 1997 Oldsmobile Aurora Base; 4.0L; 3.00"; 3.00" 1998 Oldsmobile Aurora Base; 4.0L; 3.00"; 3.00" 1999 Oldsmobile Aurora Base; 4.0L; 3.00"; 3.00" 2001 Oldsmobile Aurora Base; 4.0L; 3.00"; 3.00" 1997 Oldsmobile Lss Base; 3.8L; 3.00"; 3.00" 1999 Oldsmobile Lss Base; 3.8L; 3.00"; 3.00" 1997 Oldsmobile Regency Base; 3.8L; 3.00"; 3.00" 1998 Oldsmobile Regency Base; 3.8L; 3.00"; 3.00" 1997 Pontiac Bonneville Se, Sse, Ssei; 3.8L; 3.00"; 3.00" 1998 Pontiac Bonneville Se, Sse, Ssei; 3.8L; 3.00"; 3.00" 1999 Pontiac Bonneville Se, Sse, Ssei; 3.8L; 3.00"; 3.00" 2000 Pontiac Bonneville Se, Sle, Ssei; 3.8L; 3.00"; 3.00" 2001 Pontiac Bonneville Se, Sle, Ssei; 3.8L; 3.00"; 3.00" 2002 Pontiac Bonneville Se, Sle, Ssei; 3.8L; 3.00"; 3.00" ## Details - **Price:** 1133.9 CAD - **Vendor:** MagnaFlow - **Type:** California Universal Catalytic Converter (3" ID/3" OD) - **Tags:** 1996 Chevrolet S10, 1996 GMC Sonoma, 1996 Oldsmobile Aurora, 1997 Buick Lesabre, 1997 Buick Park Avenue, 1997 Buick Riviera, 1997 Oldsmobile 88, 1997 Oldsmobile Aurora, 1997 Oldsmobile Lss, 1997 Oldsmobile Regency, 1997 Pontiac Bonneville, 1998 Buick Lesabre, 1998 Buick Park Avenue, 1998 Buick Riviera, 1998 Oldsmobile 88, 1998 Oldsmobile Aurora, 1998 Oldsmobile Regency, 1998 Pontiac Bonneville, 1999 Buick Lesabre, 1999 Buick Park Avenue, 1999 Buick Riviera, 1999 Oldsmobile 88, 1999 Oldsmobile Aurora, 1999 Oldsmobile Lss, 1999 Pontiac Bonneville, 2000 Buick Lesabre, 2000 Buick Park Avenue, 2000 Pontiac Bonneville, 2001 Buick Park Avenue, 2001 Oldsmobile Aurora, 2001 Pontiac Bonneville, 2002 Buick Park Avenue, 2002 Pontiac Bonneville, 448309, Auto Parts, Automotive, California Universal Catalytic Converter (3" ID/3" OD), Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-448309, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1133.90 CAD | In stock | ## Images - MagnaFlow 448309 California Universal Catalytic Converter (3" ID/3" OD) --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-buick-lesabre-catalytic-converter-carb-448309) > Updated: 2026-07-16