# MagnaFlow 51205 Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD) for 1993-2021 Audi A6 and More ### Performance Overview The Magnaflow OEM Grade Catalytic Converters are the perfect replacement for your stock converter. They are crafted from high-quality stainless or aluminized steel for maximum durability. They are seam-welded for unbreakable bonds with no risk of vibrations. The catalytic converters are available with a lap inserted in the point where the neck meets the catalytic converter body. The neck is carefully formed to be sure that it doesn't reach the body where it can cause trouble to the exhaust flow. As an additional safety feature, the Catalytic Converter has a heavy duty heat shield to protect it against extreme heat and give additional stability. ### Key Features - Brand: MagnaFlow - Part number: 51205 - Product type: Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD) - Designed for compatible vehicle applications listed on this page ### Vehicle Fitment - 2002 Audi A6, Note: Base; 3.0L; 2.25"; 2.25" - 2003 Audi A6, Note: Base; 3.0L; 2.25"; 2.25" - 2004 Audi A6, Note: Base; 3.0L; 2.25"; 2.25" - 2000 Audi A6 Quattro, Note: Base; 2.7L, 4.2L; 2.25"; 2.25" - 2001 Audi A6 Quattro, Note: Base; 2.7L, 4.2L; 2.25"; 2.25" - 2002 Audi A6 Quattro, Note: Avant, Base; 2.7L, 3.0L, 4.2L; 2.25"; 2.25"; Automatic Trans - 2003 Audi A6 Quattro, Note: Avant, Base; 2.7L, 3.0L, 4.2L; 2.25"; 2.25"; Automatic Trans, Manual Trans - 2004 Audi A6 Quattro, Note: Avant, Base; 2.7L, 3.0L, 4.2L; 2.25"; 2.25"; Automatic Trans, Manual Trans ### 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 51205. **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 - Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD) for Audi A6 - 51205 fitment - MagnaFlow Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD) - 1993 Audi A6 Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD) ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 2002 Audi A6 Base; 3.0L; 2.25"; 2.25" 2003 Audi A6 Base; 3.0L; 2.25"; 2.25" 2004 Audi A6 Base; 3.0L; 2.25"; 2.25" 2000 Audi A6 Quattro Base; 2.7L, 4.2L; 2.25"; 2.25" 2001 Audi A6 Quattro Base; 2.7L, 4.2L; 2.25"; 2.25" 2002 Audi A6 Quattro Avant, Base; 2.7L, 3.0L, 4.2L; 2.25"; 2.25"; Automatic Trans 2003 Audi A6 Quattro Avant, Base; 2.7L, 3.0L, 4.2L; 2.25"; 2.25"; Automatic Trans, Manual Trans 2004 Audi A6 Quattro Avant, Base; 2.7L, 3.0L, 4.2L; 2.25"; 2.25"; Automatic Trans, Manual Trans 2001 Audi Allroad Quattro Base; 2.7L; 2.25"; 2.25" 2002 Audi Allroad Quattro Base; 2.7L; 2.25"; 2.25" 2003 Audi Allroad Quattro Base; 2.7L; 2.25"; 2.25"; Manual Trans 2004 Audi Allroad Quattro Base; 2.7L; 2.25"; 2.25"; Manual Trans 2005 Audi Allroad Quattro Base; 2.7L; 2.25"; 2.25"; Manual Trans 2000 Audi S4 Base; 2.7L; 2.25"; 2.25"; Manual Trans 2001 Audi S4 Avant, Base; 2.7L; 2.25"; 2.25"; Manual Trans 2002 Audi S4 Avant, Base; 2.7L; 2.25"; 2.25"; Manual Trans 2004 Audi S4 Avant, Base, Cabriolet; 4.2L; 2.25"; 2.25"; Manual Trans 2005 Audi S4 Avant, Base, Cabriolet; 4.2L; 2.25"; 2.25"; Manual Trans 2006 Audi S4 Avant, Base, Cabriolet; 4.2L; 2.25"; 2.25"; Manual Trans 2007 Audi S4 Avant, Base, Cabriolet; 4.2L; 2.25"; 2.25"; Manual Trans 2008 Audi S4 Avant, Base, Cabriolet; 4.2L; 2.25"; 2.25"; Manual Trans 2009 Audi S4 Cabriolet; 4.2L; 2.25"; 2.25"; Manual Trans 2002 Audi S6 Avant; 4.2L; 2.25"; 2.25" 2003 Audi S6 Avant; 4.2L; 2.25"; 2.25" 2000 Audi Tt Base; 1.8L; 2.25"; 2.25" 2002 Audi Tt Base; 1.8L; 2.25"; 2.25" 2003 Audi Tt Base; 1.8L; 2.25"; 2.25" 2004 Audi Tt Base; 1.8L; 2.25"; 2.25" 2005 Audi Tt Base; 1.8L; 2.25"; 2.25" 2006 Audi Tt Base; 1.8L; 2.25"; 2.25" 2008 Audi Tt Base; 2.0L; 2.25"; 2.25" 2009 Audi Tt Base; 2.0L; 2.25"; 2.25" 2008 Audi Tt Quattro Base; 3.2L; 2.25"; 2.25" 2009 Audi Tt Quattro Base; 3.2L; 2.25"; 2.25" 1997 Bmw 528I Base; 2.8L; 2.25"; 2.25" 1998 Bmw 528I Base; 2.8L; 2.25"; 2.25" 2011 Bmw X3 Xdrive28I; 3.0L; 2.25"; 2.25" 2012 Bmw X3 Xdrive28I; 3.0L; 2.25"; 2.25" 2008 Bmw X6 Xdrive35I; 3.0L; 2.25"; 2.25" 2009 Bmw X6 Xdrive35I; 3.0L; 2.25"; 2.25" 2010 Bmw X6 Xdrive35I; 3.0L; 2.25"; 2.25" 2017 Buick Envision Base, Essence, Preferred; 2.5L; 2.25"; 2.25" 2018 Buick Envision Base, Essence, Preferred; 2.5L; 2.25"; 2.25" 2019 Buick Envision Base, Essence, Preferred; 2.5L; 2.25"; 2.25" 2020 Buick Envision Base, Essence, Preferred; 2.5L; 2.25"; 2.25" 2010 Buick Lacrosse Cx, Cxl; 2.4L, 3.0L; 2.25"; 2.25" 2011 Buick Lacrosse Cx, Cxl, Cxs; 2.4L, 3.6L; 2.25"; 2.25" 2012 Buick Lacrosse Base, Convenience, Leather, Premium, Touring; 2.4L, 3.6L; 2.25"; 2.25" 2013 Buick Lacrosse Base, Leather, Premium, Touring; 2.4L, 3.6L; 2.25"; 2.25" 2014 Buick Lacrosse Base, Leather, Premium; 2.4L, 3.6L; 2.25"; 2.25" 2015 Buick Lacrosse Base, Leather, Premium; 2.4L, 3.6L; 2.25"; 2.25" 2016 Buick Lacrosse Base, Leather; 2.4L; 2.25"; 2.25" 2012 Buick Regal Base; 2.4L; 2.25"; 2.25" 2013 Buick Regal Base, Premium; 2.4L; 2.25"; 2.25" 2014 Buick Regal Base, Premium; 2.4L; 2.25"; 2.25" 2015 Buick Regal Premium; 2.4L; 2.25"; 2.25" 2004 Buick Rendezvous Cx, Cxl; 3.4L; 2.25"; 2.25" 2005 Buick Rendezvous Cx, Cx Plus, Cxl; 3.4L; 2.25"; 2.25" 2006 Buick Rendezvous Cx, Cxl; 3.5L; 2.25"; 2.25"; Front Wheel Drive 2007 Buick Rendezvous Cx, Cxl; 3.5L; 2.25"; 2.25"; Front Wheel Drive 1994 Buick Roadmaster Base, Estate Wagon, Limited; 5.7L; 2.25"; 2.25" 1995 Buick Roadmaster Base, Estate Wagon, Limited; 5.7L; 2.25"; 2.25" 1996 Buick Roadmaster Collector'S Edition, Estate Wagon Collector'S Edition, Limited Collector'S Edition; 5.7L; 2.25"; 2.25" 1996 Buick Skylark Custom, Limited, Olympic Gold Edition; 2.4L; 2.25"; 2.25" 1997 Buick Skylark Custom, Limited; 2.4L; 2.25"; 2.25" 1998 Buick Skylark Custom; 2.4L; 2.25"; 2.25" 2012 Buick Verano Base, Convenience, Leather; 2.4L; 2.25"; 2.25" 2013 Buick Verano Base, Convenience, Leather; 2.4L; 2.25"; 2.25" 2014 Buick Verano Base, Convenience, Leather; 2.4L; 2.25"; 2.25" 2015 Buick Verano Base, Convenience, Leather; 2.4L; 2.25"; 2.25" ## Details - **Price:** 252.42 CAD - **Vendor:** MagnaFlow - **Type:** Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD) - **Tags:** 1997 Bmw 528I, 2000 Audi A6 Quattro, 2000 Audi S4, 2000 Audi Tt, 2001 Audi A6 Quattro, 2001 Audi Allroad Quattro, 2001 Audi S4, 2002 Audi A6, 2002 Audi A6 Quattro, 2002 Audi Allroad Quattro, 2002 Audi S4, 2002 Audi S6, 2002 Audi Tt, 2003 Audi A6, 2003 Audi A6 Quattro, 2003 Audi Allroad Quattro, 2003 Audi S6, 2003 Audi Tt, 2004 Audi A6, 2004 Audi A6 Quattro, 2004 Audi Allroad Quattro, 2004 Audi S4, 2004 Audi Tt, 2005 Audi Allroad Quattro, 2005 Audi S4, 2005 Audi Tt, 2006 Audi S4, 2006 Audi Tt, 2007 Audi S4, 2008 Audi S4, 2008 Audi Tt, 2008 Audi Tt Quattro, 2009 Audi S4, 2009 Audi Tt, 2009 Audi Tt Quattro, 51205, Auto Parts, Automotive, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, MagnaFlow, Magnaflow-51205, Muffler, Performance Exhaust, Performance Parts, Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD), Vehicle Fitment ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 252.42 CAD | In stock | ## Images - MagnaFlow 51205 Universal OEM Grade Catalytic Converter (2.25" ID/2.25" OD) --- > Source: [Standard Auto Part](www.standardautopart.com/products/magnaflow-audi-a6-catalytic-converter-51205) > Updated: 2026-06-13