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Magnaflow 11-13 QX56 V8 5.6 OEM Underbody Direct Fit Converter

SKU: MAG21-121

Catalytic Converters

MAG Converter Direct Fit...

Magnaflow 11-13 QX56 V8 5.6 OEM Underbody Direct Fit Converter

SKU: MAG21-121

Catalytic Converters

MAG Converter Direct Fit...

A$950.99
LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-121. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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 & 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.

Product Overview

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-121. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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 & 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 and Benefits

  • Expertly Crafted To Replicate Oem-Like Flow Dynamics/Maintaining Factory Performance And Fuel Efficiency
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Simplifies Installation With Essential Gaskets And Hardware Being Included In The Box
  • Your Trusted Source For EPA-Compliant Catalytic Converters
  • Mandrel Bent Tubing Retains Oem-Like Design And Geometry
  • High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
  • Durable 308 Stainless Steel Mig Welds
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency

Product Details

Air Tube Adaptable:No
Air Tube Count:0
Body Material:Stainless Steel
Body Type:Spun
CARB Executive Order Number:Not Applicable
California Air Resources Board (CARB) Certified:No
Catalytic Converter Air Tube Adapter:No
Clamp Included:No
Clamps Included:No
Converter Quantity:1
Core Substrate Material:Ceramic
Description:OEM Grade Direct-Fit Catalytic Converter
Finish:Stainless Steel
Gasket Included:Yes
Grade Type:Regular
Hangers Included:No
Heat Shield Attached:No
Heat Shield Material:None
Inlet Attachment:Bolt-On
Inlet Gasket Included:Yes
Inlet Mounting Hardware Included:No
Inlet Type:Bolt-On
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Gasket Included:Yes
Outlet Mounting Hardware Included:Yes
Outlet Outside Diameter:N/A
Outlet Type:Bolt-On
Overall Length:29
Oxygen Sensor Location:Pre Converter
Part Number:mag21-121
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Sensor Port Count:1
Series:OEM Grade
Substrate Material:Ceramic
Subtitle:Federal / EPA Compliant Direct-Fit Catalytic Converter
Title:MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 21-121
Tube Material:Stainless Steel
Type:Direct-Fit
Universal Or Specific Fit:Specific
WARNING CA Proposition 65:No

Part Type

Catalytic Converters

Data: v4.2 - Upd: 2026-10-13 22:22:37

Features

  • Durable 308 stainless steel MIG welds
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • Expertly Crafted To Replicate Oem-Like Flow Dynamics/Maintaining Factory Performance And Fuel Efficiency
  • High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
  • Mandrel Bent Tubing Retains Oem-Like Design And Geometry
  • Mandrel bent tubing retains OEM-like design and geometry, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • Simplifies Installation With Essential Gaskets And Hardware Being Included In The Box
  • Your Trusted Source For EPA-Compliant Catalytic Converters
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last

Specifications

Product Attributes - Brand
MagnaFlow
Product Attributes - Manufacturer's Part Number
21-121
Product Attributes - Part Type
Catalytic Converters
Product Attributes - Product Line
MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converters
Product Attributes - UPC
888563108292
Product Attributes - Inlet Quantity
1
Product Attributes - Converter Inlet Attachment
Stock flange
Product Attributes - Outlet Quantity
1
Product Attributes - Converter Outlet Attachment
Stock flange
Product Attributes - Converter Case Material
Stainless steel
Product Attributes - Converter Substrate Material
Ceramic substrate
Product Attributes - Converter Style
3-way
Product Attributes - Remanufactured
No
Product Attributes - AIR Tube
No
Product Attributes - Heat Shield
No
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag21-121
SFX Item ID 4289469
Supplier Item Code 4289469
Manufacturer SKU 21-121
Manufacturer UPC 888563108292
Alternative References MFL21-121, MPE-21-121, QX56

Compatibility

Application Data
  • MakeNISSAN
    ModelARMADA
    SubmodelSV
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX56
    SubmodelBASE
    Beginning Year2011
    Ending Year2013
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    Drivetrain4WD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX56
    SubmodelBASE
    Beginning Year2011
    Ending Year2013
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX56
    SubmodelBASE
    Beginning Year2011
    Ending Year2013
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX80
    SubmodelBASE
    Beginning Year2014
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX80
    SubmodelBASE
    Beginning Year2014
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX80
    SubmodelBASE
    Beginning Year2014
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX80
    SubmodelBASE
    Beginning Year2014
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX80
    SubmodelLIMITED
    Beginning Year2016
    Ending Year2017
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeINFINITI
    ModelQX80
    SubmodelLIMITED
    Beginning Year2016
    Ending Year2017
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM RESERVE
    Beginning Year2018
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM RESERVE
    Beginning Year2018
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM RESERVE
    Beginning Year2018
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelPLATINUM RESERVE
    Beginning Year2018
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelSL
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelSL
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelSL
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelSL
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelSV
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelSV
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainAWD
    Catalytic Converter PositionLeft
  • MakeNISSAN
    ModelARMADA
    SubmodelSV
    Beginning Year2017
    Ending Year2018
    Engine TypeV8
    Liter5.6
    CC5552
    Engine FamilyNissan V8
    Engine Size5.6L/5552cc
    DrivetrainRWD
    Catalytic Converter PositionLeft

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