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Door Buster Magnaflow 11-13 Qx56 V8 5.6 Oem Underbody Direct Fit Converter (21-121) [limited Qty] [8R1MAXZy]

$43.99 $140.99 -69%

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-121. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to elim

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Door Buster Magnaflow 11-13 Qx56 V8 5.6 Oem Underbody Direct Fit Converter (21-121) [limited Qty] [8R1MAXZy]

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-121. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 2014-2021 INFINITI QX80 2017-2019 Nissan TITAN and more this direct-fit catalytic converter also interchanges with OE parts 20020-1LA0E and 20020-1LA0A. The included gaskets &amp

hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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 California or Federal/EPA Emission systems.

Features

  • Your trusted source for EPA-compliant catalytic converters providing assurance of genuine compliance while delivering quality that will last
  • Mandrel bent tubing retains OEM-like design and geometry ensuring smooth exhaust flow for peak fuel economy and engine operation
  • High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
  • Expertly crafted to replicate OEM-like flow dynamics maintaining factory performance and fuel efficiency
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds

What Our Customers Say

January 26, 2026

Absolutely no complaints!

This is a great, and a very, very sturdy item.

- Bleddyn C..

January 26, 2026

Absolutely no complaints!

A product that inspires complete confidence.

- Ivor N..

January 26, 2026

Absolutely no complaints!

I'm happy with my fantastic, very great purchase.

- Gwen U..

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