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Universal Magnaflow HM Grade Federal 4" Catalytic Converter

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 60121. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.


  • Federal/ EPA Compliant - Extensive testing and certification processes are followed to guarantee that 60121 meets emissions standards set by the Federal EPA.
  • Universal Installation - Universal catalytic converters allow you to place it in the exact location and orientation required for your vehicle. Professional installation is highly recommended.
  • Spun Body Design - Durable stainless-steel construction, integrated OEM-like O2 ports and sturdy hangers guarantee optimal catalytic converter performance and reliability. The spun-body design ensures excellent corrosion resistance.
  • HM Grade - Catalytic converter 60121 is built to HM Grade standards, meaning that it contains extra catalysts to further improve the conversion of unwanted emissions.



Type: Universal

Series: HM Grade

Inlet Type: Weld-On

Outlet Type: Weld-On

Overall Length: 12"

Air Tube Adaptable: No

Oxygen Sensor Location: None

Body Type: Spun

Body Shape: Round

Body Material: Stainless Steel

Substrate Material: Metallic

Body Width: 6"

Body Length: 12"


Part number: 60121

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