Magnaflow Universal Catalytic Converter 3-inch Inlet/Outlet, 5-inch Body - EPA Compliant

SKU: MAG99659HM
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About Magnaflow MagnaFlow has been America's leader in stainless steel ...Read More

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Sale price$239.00
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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 HM Grade Universal Catalytic Converter (3" Inlet/Outlet, 5" Body)

The Magnaflow 99659HM Universal Catalytic Converter is engineered for superior performance and emissions compliance. Featuring a 3-inch inlet and outlet with a 5-inch spun body, this converter is designed for universal fitment, requiring professional cutting and welding for installation. Its robust stainless steel construction ensures excellent resistance to corrosion and long-term durability.

Advanced Design for Efficiency

This Magnaflow converter utilizes a single, laser-fusion weld on its spun body, significantly reducing the potential for leaks and enhancing reliability. The compact, low-mass design promotes greater thermal efficiency, contributing to optimal performance. It is designed to meet or exceed federal emissions requirements set by the EPA, making it suitable for OBDII federally registered vehicles with Federal/EPA Emission systems.

Key Features:

  • Universal Fitment: Requires cutting and welding for custom installation.
  • 3-inch Inlet/Outlet: Suitable for larger diameter exhaust systems.
  • 5-inch Spun Body: Compact and efficient design.
  • Durable Stainless Steel: Highly corrosion-resistant for longevity.
  • EPA Compliant: Meets federal emissions standards.
  • Reduced Leak Potential: Single laser-fusion weld construction.
  • Improved Thermal Efficiency: Low-mass design.

Ensure your vehicle runs cleaner and performs better with the Magnaflow 99659HM. This high-quality catalytic converter offers a blend of durability, efficiency, and compliance. Discover this and other premium exhaust solutions at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2006 Chevrolet Avalanche 2500 LS
2006 Chevrolet Avalanche 2500 LT
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2006 Chevrolet Silverado 2500 HD LT
2003-2006 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2003 Chevrolet Silverado 3500 LT
2003 Chevrolet Silverado 3500 Base
2003 Chevrolet Silverado 3500 LS
2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2006 Chevrolet Silverado 3500 LS
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2000-2001 Chevrolet Suburban 2500 Base
2000-2008 Chevrolet Suburban 2500 LS
2000-2008 Chevrolet Suburban 2500 LT
2007 Chevrolet Suburban 2500 LTZ
2000-2001 Dodge Ram 1500 Laramie
2000-2001 Dodge Ram 1500 Sport
2000-2001 Dodge Ram 1500 ST
2000-2001 Dodge Ram 1500 WS
2000-2003 Dodge Ram 1500 Van Base
2000-2003 Dodge Ram 2500 Van Base
2000-2003 Dodge Ram 3500 Van Base
2001-2002 GMC Sierra 2500 HD SL
2001-2006 GMC Sierra 2500 HD SLE
2001-2006 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2006 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD SL
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2003 GMC Sierra 3500 Base
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 SL
2006 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2000-2008 GMC Yukon XL 2500 SLE
2000-2008 GMC Yukon XL 2500 SLT

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 HM Grade Universal Catalytic Converter (3" Inlet/Outlet, 5" Body)

The Magnaflow 99659HM Universal Catalytic Converter is engineered for superior performance and emissions compliance. Featuring a 3-inch inlet and outlet with a 5-inch spun body, this converter is designed for universal fitment, requiring professional cutting and welding for installation. Its robust stainless steel construction ensures excellent resistance to corrosion and long-term durability.

Advanced Design for Efficiency

This Magnaflow converter utilizes a single, laser-fusion weld on its spun body, significantly reducing the potential for leaks and enhancing reliability. The compact, low-mass design promotes greater thermal efficiency, contributing to optimal performance. It is designed to meet or exceed federal emissions requirements set by the EPA, making it suitable for OBDII federally registered vehicles with Federal/EPA Emission systems.

Key Features:

  • Universal Fitment: Requires cutting and welding for custom installation.
  • 3-inch Inlet/Outlet: Suitable for larger diameter exhaust systems.
  • 5-inch Spun Body: Compact and efficient design.
  • Durable Stainless Steel: Highly corrosion-resistant for longevity.
  • EPA Compliant: Meets federal emissions standards.
  • Reduced Leak Potential: Single laser-fusion weld construction.
  • Improved Thermal Efficiency: Low-mass design.

Ensure your vehicle runs cleaner and performs better with the Magnaflow 99659HM. This high-quality catalytic converter offers a blend of durability, efficiency, and compliance. Discover this and other premium exhaust solutions at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2006 Chevrolet Avalanche 2500 LS
2006 Chevrolet Avalanche 2500 LT
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2006 Chevrolet Silverado 2500 HD LT
2003-2006 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2003 Chevrolet Silverado 3500 LT
2003 Chevrolet Silverado 3500 Base
2003 Chevrolet Silverado 3500 LS
2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2006 Chevrolet Silverado 3500 LS
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2000-2001 Chevrolet Suburban 2500 Base
2000-2008 Chevrolet Suburban 2500 LS
2000-2008 Chevrolet Suburban 2500 LT
2007 Chevrolet Suburban 2500 LTZ
2000-2001 Dodge Ram 1500 Laramie
2000-2001 Dodge Ram 1500 Sport
2000-2001 Dodge Ram 1500 ST
2000-2001 Dodge Ram 1500 WS
2000-2003 Dodge Ram 1500 Van Base
2000-2003 Dodge Ram 2500 Van Base
2000-2003 Dodge Ram 3500 Van Base
2001-2002 GMC Sierra 2500 HD SL
2001-2006 GMC Sierra 2500 HD SLE
2001-2006 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2006 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD SL
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2003 GMC Sierra 3500 Base
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 SL
2006 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2000-2008 GMC Yukon XL 2500 SLE
2000-2008 GMC Yukon XL 2500 SLT

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 HM Grade Universal Catalytic Converter (3" Inlet/Outlet, 5" Body)

The Magnaflow 99659HM Universal Catalytic Converter is engineered for superior performance and emissions compliance. Featuring a 3-inch inlet and outlet with a 5-inch spun body, this converter is designed for universal fitment, requiring professional cutting and welding for installation. Its robust stainless steel construction ensures excellent resistance to corrosion and long-term durability.

Advanced Design for Efficiency

This Magnaflow converter utilizes a single, laser-fusion weld on its spun body, significantly reducing the potential for leaks and enhancing reliability. The compact, low-mass design promotes greater thermal efficiency, contributing to optimal performance. It is designed to meet or exceed federal emissions requirements set by the EPA, making it suitable for OBDII federally registered vehicles with Federal/EPA Emission systems.

Key Features:

  • Universal Fitment: Requires cutting and welding for custom installation.
  • 3-inch Inlet/Outlet: Suitable for larger diameter exhaust systems.
  • 5-inch Spun Body: Compact and efficient design.
  • Durable Stainless Steel: Highly corrosion-resistant for longevity.
  • EPA Compliant: Meets federal emissions standards.
  • Reduced Leak Potential: Single laser-fusion weld construction.
  • Improved Thermal Efficiency: Low-mass design.

Ensure your vehicle runs cleaner and performs better with the Magnaflow 99659HM. This high-quality catalytic converter offers a blend of durability, efficiency, and compliance. Discover this and other premium exhaust solutions at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2006 Chevrolet Avalanche 2500 LS
2006 Chevrolet Avalanche 2500 LT
2001-2005 Chevrolet Silverado 2500 HD Base
2001-2006 Chevrolet Silverado 2500 HD LS
2001-2006 Chevrolet Silverado 2500 HD LT
2003-2006 Chevrolet Silverado 2500 HD WT
2007 Chevrolet Silverado 2500 HD Classic LS
2007 Chevrolet Silverado 2500 HD Classic LT
2007 Chevrolet Silverado 2500 HD Classic WT
2003 Chevrolet Silverado 3500 LT
2003 Chevrolet Silverado 3500 Base
2003 Chevrolet Silverado 3500 LS
2006 Chevrolet Silverado 3500 LT
2006 Chevrolet Silverado 3500 WT
2006 Chevrolet Silverado 3500 LS
2007 Chevrolet Silverado 3500 Classic LS
2007 Chevrolet Silverado 3500 Classic LT
2007 Chevrolet Silverado 3500 Classic WT
2000-2001 Chevrolet Suburban 2500 Base
2000-2008 Chevrolet Suburban 2500 LS
2000-2008 Chevrolet Suburban 2500 LT
2007 Chevrolet Suburban 2500 LTZ
2000-2001 Dodge Ram 1500 Laramie
2000-2001 Dodge Ram 1500 Sport
2000-2001 Dodge Ram 1500 ST
2000-2001 Dodge Ram 1500 WS
2000-2003 Dodge Ram 1500 Van Base
2000-2003 Dodge Ram 2500 Van Base
2000-2003 Dodge Ram 3500 Van Base
2001-2002 GMC Sierra 2500 HD SL
2001-2006 GMC Sierra 2500 HD SLE
2001-2006 GMC Sierra 2500 HD SLT
2002-2005 GMC Sierra 2500 HD Base
2003-2006 GMC Sierra 2500 HD WT
2006 GMC Sierra 2500 HD SL
2007 GMC Sierra 2500 HD Classic SL
2007 GMC Sierra 2500 HD Classic SLE
2007 GMC Sierra 2500 HD Classic SLT
2007 GMC Sierra 2500 HD Classic WT
2003 GMC Sierra 3500 Base
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 SL
2006 GMC Sierra 3500 SLE
2006 GMC Sierra 3500 SLT
2006 GMC Sierra 3500 WT
2007 GMC Sierra 3500 Classic SL
2007 GMC Sierra 3500 Classic SLE
2007 GMC Sierra 3500 Classic SLT
2007 GMC Sierra 3500 Classic WT
2000-2008 GMC Yukon XL 2500 SLE
2000-2008 GMC Yukon XL 2500 SLT

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