Magnaflow Universal 3" Inlet/Outlet Catalytic Converter — Fits Many Vehicles

SKU: MAG51209
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About Magnaflow MagnaFlow has been America's leader in stainless steel ...Read More

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Sale price$211.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Magnaflow

MagnaFlow has been America's leader in stainless steel performance exhaust since 1981. From the rumbly Pro Street to the OE-quiet Touring series, every MagnaFlow exhaust delivers measurable HP, an unmistakable note, and a lifetime warranty.

Watch in action

Magnaflow OEM Grade Universal Catalytic Converter (51209)

Ensure your vehicle runs cleanly and efficiently with the Magnaflow 51209 Universal Catalytic Converter. Designed to meet Federal/EPA emissions requirements, this converter is an excellent choice for keeping your check engine light off and your vehicle compliant with emissions standards. Its universal design means it can be adapted to a wide range of vehicles, though professional installation involving cutting and welding is required.

Key Features and Benefits:

  • EPA Compliant: Meets Federal emissions requirements for OBDII registered vehicles.
  • Durable Construction: Made from highly corrosion-resistant stainless steel for long-lasting performance.
  • Universal Fitment: Adaptable design for use on various makes and models (requires cutting and welding).
  • Reliable Performance: Helps maintain optimal engine performance and prevent check engine lights.
  • OEM Grade Quality: Built to meet or exceed original equipment standards.

This Magnaflow catalytic converter is engineered for durability and compliance. Its robust stainless steel build ensures it can withstand harsh conditions, while its adherence to EPA standards provides peace of mind. Whether you're replacing a failed converter or upgrading your exhaust system, the Magnaflow 51209 offers a reliable solution. Trust GGCRACING for quality exhaust components.

Vehicle Fitment

Years Make Model Trim
2012-2016 BMW 328i Base
2015-2016 BMW 328i GT xDrive Base
2013-2016 BMW 328i xDrive Base
2019-2022 BMW 330i Base
2019-2022 BMW 330i xDrive Base
2014-2016 BMW 428i Base
2015-2016 BMW 428i Gran Coupe Base
2014-2016 BMW 428i xDrive Base
2015-2016 BMW 428i xDrive Gran Coupe Base
2018-2022 BMW 530e Base
2018-2022 BMW 530e xDrive Base
2006-2010 BMW M5 Base
2006-2010 BMW M6 Base
1997-2005 Buick LeSabre Custom
1997-2005 Buick LeSabre Limited
1997-2005 Buick Park Avenue Ultra
1997-2005 Buick Park Avenue Base
1997-1999 Buick Riviera Base
2013-2016 Cadillac ATS Performance
2013-2016 Cadillac ATS Premium
2013-2019 Cadillac ATS Base
2013-2019 Cadillac ATS Luxury
2006-2011 Cadillac DTS Base
2007-2011 Cadillac DTS Luxury
2008-2011 Cadillac DTS Platinum
2010-2011 Cadillac DTS Livery
2010-2011 Cadillac DTS Premium
1996-1999 Cadillac DeVille Concours
1996-1999 Cadillac DeVille d'Elegance
1996-2005 Cadillac DeVille Base
2000-2005 Cadillac DeVille DHS
2000-2005 Cadillac DeVille DTS
2004-2005 Cadillac DeVille Protection Series
1996-1997 Cadillac Eldorado Base
1996-1999 Cadillac Eldorado ETC
1998-1999 Cadillac Eldorado ESC
2010-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
1996-2003 Cadillac Seville STS
1996-2004 Cadillac Seville SLS
1996-2005 Chevrolet Astro Base
1996-2005 Chevrolet Astro LS
1996-2005 Chevrolet Astro LT
2009-2012 Chevrolet Avalanche LS
2009-2012 Chevrolet Avalanche LT
2009-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2004 Chevrolet Avalanche 2500 Base
2005-2006 Chevrolet Avalanche 2500 LS
2005-2006 Chevrolet Avalanche 2500 LT
1996-1997 Chevrolet C1500 Base
1996-1998 Chevrolet C1500 Cheyenne
1996-1998 Chevrolet C1500 Silverado
1996-1998 Chevrolet C1500 WT
1999 Chevrolet C1500 LS
1996-1997 Chevrolet C2500 Base
1996-1998 Chevrolet C2500 Cheyenne
1996-1998 Chevrolet C2500 Silverado

…and 279 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Magnaflow

MagnaFlow has been America's leader in stainless steel performance exhaust since 1981. From the rumbly Pro Street to the OE-quiet Touring series, every MagnaFlow exhaust delivers measurable HP, an unmistakable note, and a lifetime warranty.

Watch in action

Magnaflow OEM Grade Universal Catalytic Converter (51209)

Ensure your vehicle runs cleanly and efficiently with the Magnaflow 51209 Universal Catalytic Converter. Designed to meet Federal/EPA emissions requirements, this converter is an excellent choice for keeping your check engine light off and your vehicle compliant with emissions standards. Its universal design means it can be adapted to a wide range of vehicles, though professional installation involving cutting and welding is required.

Key Features and Benefits:

  • EPA Compliant: Meets Federal emissions requirements for OBDII registered vehicles.
  • Durable Construction: Made from highly corrosion-resistant stainless steel for long-lasting performance.
  • Universal Fitment: Adaptable design for use on various makes and models (requires cutting and welding).
  • Reliable Performance: Helps maintain optimal engine performance and prevent check engine lights.
  • OEM Grade Quality: Built to meet or exceed original equipment standards.

This Magnaflow catalytic converter is engineered for durability and compliance. Its robust stainless steel build ensures it can withstand harsh conditions, while its adherence to EPA standards provides peace of mind. Whether you're replacing a failed converter or upgrading your exhaust system, the Magnaflow 51209 offers a reliable solution. Trust GGCRACING for quality exhaust components.

Vehicle Fitment

Years Make Model Trim
2012-2016 BMW 328i Base
2015-2016 BMW 328i GT xDrive Base
2013-2016 BMW 328i xDrive Base
2019-2022 BMW 330i Base
2019-2022 BMW 330i xDrive Base
2014-2016 BMW 428i Base
2015-2016 BMW 428i Gran Coupe Base
2014-2016 BMW 428i xDrive Base
2015-2016 BMW 428i xDrive Gran Coupe Base
2018-2022 BMW 530e Base
2018-2022 BMW 530e xDrive Base
2006-2010 BMW M5 Base
2006-2010 BMW M6 Base
1997-2005 Buick LeSabre Custom
1997-2005 Buick LeSabre Limited
1997-2005 Buick Park Avenue Ultra
1997-2005 Buick Park Avenue Base
1997-1999 Buick Riviera Base
2013-2016 Cadillac ATS Performance
2013-2016 Cadillac ATS Premium
2013-2019 Cadillac ATS Base
2013-2019 Cadillac ATS Luxury
2006-2011 Cadillac DTS Base
2007-2011 Cadillac DTS Luxury
2008-2011 Cadillac DTS Platinum
2010-2011 Cadillac DTS Livery
2010-2011 Cadillac DTS Premium
1996-1999 Cadillac DeVille Concours
1996-1999 Cadillac DeVille d'Elegance
1996-2005 Cadillac DeVille Base
2000-2005 Cadillac DeVille DHS
2000-2005 Cadillac DeVille DTS
2004-2005 Cadillac DeVille Protection Series
1996-1997 Cadillac Eldorado Base
1996-1999 Cadillac Eldorado ETC
1998-1999 Cadillac Eldorado ESC
2010-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
1996-2003 Cadillac Seville STS
1996-2004 Cadillac Seville SLS
1996-2005 Chevrolet Astro Base
1996-2005 Chevrolet Astro LS
1996-2005 Chevrolet Astro LT
2009-2012 Chevrolet Avalanche LS
2009-2012 Chevrolet Avalanche LT
2009-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2004 Chevrolet Avalanche 2500 Base
2005-2006 Chevrolet Avalanche 2500 LS
2005-2006 Chevrolet Avalanche 2500 LT
1996-1997 Chevrolet C1500 Base
1996-1998 Chevrolet C1500 Cheyenne
1996-1998 Chevrolet C1500 Silverado
1996-1998 Chevrolet C1500 WT
1999 Chevrolet C1500 LS
1996-1997 Chevrolet C2500 Base
1996-1998 Chevrolet C2500 Cheyenne
1996-1998 Chevrolet C2500 Silverado

…and 279 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About Magnaflow

MagnaFlow has been America's leader in stainless steel performance exhaust since 1981. From the rumbly Pro Street to the OE-quiet Touring series, every MagnaFlow exhaust delivers measurable HP, an unmistakable note, and a lifetime warranty.

Watch in action

Magnaflow OEM Grade Universal Catalytic Converter (51209)

Ensure your vehicle runs cleanly and efficiently with the Magnaflow 51209 Universal Catalytic Converter. Designed to meet Federal/EPA emissions requirements, this converter is an excellent choice for keeping your check engine light off and your vehicle compliant with emissions standards. Its universal design means it can be adapted to a wide range of vehicles, though professional installation involving cutting and welding is required.

Key Features and Benefits:

  • EPA Compliant: Meets Federal emissions requirements for OBDII registered vehicles.
  • Durable Construction: Made from highly corrosion-resistant stainless steel for long-lasting performance.
  • Universal Fitment: Adaptable design for use on various makes and models (requires cutting and welding).
  • Reliable Performance: Helps maintain optimal engine performance and prevent check engine lights.
  • OEM Grade Quality: Built to meet or exceed original equipment standards.

This Magnaflow catalytic converter is engineered for durability and compliance. Its robust stainless steel build ensures it can withstand harsh conditions, while its adherence to EPA standards provides peace of mind. Whether you're replacing a failed converter or upgrading your exhaust system, the Magnaflow 51209 offers a reliable solution. Trust GGCRACING for quality exhaust components.

Vehicle Fitment

Years Make Model Trim
2012-2016 BMW 328i Base
2015-2016 BMW 328i GT xDrive Base
2013-2016 BMW 328i xDrive Base
2019-2022 BMW 330i Base
2019-2022 BMW 330i xDrive Base
2014-2016 BMW 428i Base
2015-2016 BMW 428i Gran Coupe Base
2014-2016 BMW 428i xDrive Base
2015-2016 BMW 428i xDrive Gran Coupe Base
2018-2022 BMW 530e Base
2018-2022 BMW 530e xDrive Base
2006-2010 BMW M5 Base
2006-2010 BMW M6 Base
1997-2005 Buick LeSabre Custom
1997-2005 Buick LeSabre Limited
1997-2005 Buick Park Avenue Ultra
1997-2005 Buick Park Avenue Base
1997-1999 Buick Riviera Base
2013-2016 Cadillac ATS Performance
2013-2016 Cadillac ATS Premium
2013-2019 Cadillac ATS Base
2013-2019 Cadillac ATS Luxury
2006-2011 Cadillac DTS Base
2007-2011 Cadillac DTS Luxury
2008-2011 Cadillac DTS Platinum
2010-2011 Cadillac DTS Livery
2010-2011 Cadillac DTS Premium
1996-1999 Cadillac DeVille Concours
1996-1999 Cadillac DeVille d'Elegance
1996-2005 Cadillac DeVille Base
2000-2005 Cadillac DeVille DHS
2000-2005 Cadillac DeVille DTS
2004-2005 Cadillac DeVille Protection Series
1996-1997 Cadillac Eldorado Base
1996-1999 Cadillac Eldorado ETC
1998-1999 Cadillac Eldorado ESC
2010-2013 Cadillac Escalade Hybrid
2010-2013 Cadillac Escalade Hybrid Platinum
1996-2003 Cadillac Seville STS
1996-2004 Cadillac Seville SLS
1996-2005 Chevrolet Astro Base
1996-2005 Chevrolet Astro LS
1996-2005 Chevrolet Astro LT
2009-2012 Chevrolet Avalanche LS
2009-2012 Chevrolet Avalanche LT
2009-2012 Chevrolet Avalanche LTZ
2013 Chevrolet Avalanche Black Diamond LS
2013 Chevrolet Avalanche Black Diamond LT
2013 Chevrolet Avalanche Black Diamond LTZ
2002-2004 Chevrolet Avalanche 2500 Base
2005-2006 Chevrolet Avalanche 2500 LS
2005-2006 Chevrolet Avalanche 2500 LT
1996-1997 Chevrolet C1500 Base
1996-1998 Chevrolet C1500 Cheyenne
1996-1998 Chevrolet C1500 Silverado
1996-1998 Chevrolet C1500 WT
1999 Chevrolet C1500 LS
1996-1997 Chevrolet C2500 Base
1996-1998 Chevrolet C2500 Cheyenne
1996-1998 Chevrolet C2500 Silverado

…and 279 additional fitments. Contact us to confirm yours.

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