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MagnaFlow Direct Fit Catalytic Converter 12-14 Subaru Impreza 2.5L / 15-16 WRX STI

SKU: MAG5421012

Catalytic Converters

MAG Converter Direct Fit...

MagnaFlow Direct Fit Catalytic Converter 12-14 Subaru Impreza 2.5L / 15-16 WRX STI

SKU: MAG5421012

Catalytic Converters

MAG Converter Direct Fit...

A$1,775.46
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5421012 helps keep the check engine light off. 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 2008-2014 Subaru Impreza and 2015-2016 Subaru WRX STI, this direct-fit catalytic converter also interchanges with OE part 44611AA250. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Overview

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5421012 helps keep the check engine light off. 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 2008-2014 Subaru Impreza and 2015-2016 Subaru WRX STI, this direct-fit catalytic converter also interchanges with OE part 44611AA250. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.


Features and Benefits

  • Expertly Crafted To Replicate OEM Like Flow Dynamics; Maintaining Factory Performance And Fuel Efficiency
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Simplifies Installation w/Essential Gaskets And Hardware Being Included In The Box
  • Your Trusted Source For CARB-Compliant Catalytic Converters; Providing Assurance Of Genuine Compliance
  • Mandrel Bent Tubing Retains OEM-Like Design And Geometry; Ensuring Smooth Exhaust Flow For Peak Fuel Economy Operation
  • OE-Sized Barbed Exhaust Hangers Made From Corrosion-Resistant 410 Stainless Steel; Designed To Reduce Noise/Vibration
  • 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
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • 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

Product Details

Air Tube Adaptable:No
Air Tube Count:0
Body Material:Stainless Steel
Body Type:Clam-Shell
CARB Executive Order Number:D-193-135
California Air Resources Board (CARB) Certified:Yes
Clamp Included:No
Clamps Included:No
Converter Quantity:1
Core Substrate Material:Ceramic
Description:California Direct-Fit Catalytic Converter
Finish:Stainless Steel
Grade Type:Regular
Hangers Included:Yes
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:No
Outlet Type:Bolt-On
Overall Length:34.75
Oxygen Sensor Location:Pre Converter
Part Number:mag5421012
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Sensor Port Count:1
Series:California
Substrate Material:Ceramic
Subtitle:CARB Compliant Direct-Fit Catalytic Converter
Subtitles:California / CARB Compliant
Title:MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5421012
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 22:23:33

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, ensuring smooth exhaust flow for peak fuel economy and engine operation
  • Mandrel Bent Tubing Retains OEM-Like Design And Geometry; Ensuring Smooth Exhaust Flow For Peak Fuel Economy Operation
  • OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
  • OE-Sized Barbed Exhaust Hangers Made From Corrosion-Resistant 410 Stainless Steel; Designed To Reduce Noise/Vibration
  • Simplifies Installation w/Essential Gaskets And Hardware Being Included In The Box
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
  • Your Trusted Source For CARB-Compliant Catalytic Converters; Providing Assurance Of Genuine Compliance

Specifications

Product Attributes - Brand
MagnaFlow
Product Attributes - Manufacturer's Part Number
5421012
Product Attributes - Part Type
Catalytic Converters
Product Attributes - Product Line
MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converters
Product Attributes - UPC
888563106397
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.
Product Attributes - CARB EO Number(s)
D-193-147
Product Attributes - Emissions
California EO Approved

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag5421012
SFX Item ID 4288952
Supplier Item Code 4288952
Manufacturer SKU 5421012
Manufacturer UPC 888563106397
Alternative References mpe-5421012, MFL5421012, 2.5L

Compatibility

Application Data
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    Submodel2.5 GT
    Beginning Year2010
    Ending Year2010
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
    Application NotesAspiration: Turbocharged
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX
    Beginning Year2010
    Ending Year2011
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
    Application NotesAspiration: Turbocharged
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX
    Beginning Year2012
    Ending Year2014
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX LIMITED
    Beginning Year2010
    Ending Year2011
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
    Application NotesAspiration: Turbocharged
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX LIMITED
    Beginning Year2012
    Ending Year2014
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX PREMIUM
    Beginning Year2010
    Ending Year2011
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
    Application NotesAspiration: Turbocharged
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX PREMIUM
    Beginning Year2012
    Ending Year2014
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI
    Beginning Year2008
    Ending Year2009
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI
    Beginning Year2010
    Ending Year2011
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
    Application NotesAspiration: Turbocharged
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI
    Beginning Year2012
    Ending Year2014
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI LIMITED
    Beginning Year2011
    Ending Year2011
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
    Application NotesAspiration: Turbocharged
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI LIMITED
    Beginning Year2012
    Ending Year2014
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelIMPREZA
    SubmodelWRX STI SPECIAL EDITION
    Beginning Year2010
    Ending Year2010
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
    Application NotesAspiration: Turbocharged
  • UniversalNo
    MakeSUBARU
    ModelWRX STI
    SubmodelBASE
    Beginning Year2015
    Ending Year2016
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelWRX STI
    SubmodelLAUNCH EDITION
    Beginning Year2015
    Ending Year2015
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelWRX STI
    SubmodelLIMITED
    Beginning Year2015
    Ending Year2016
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter
  • UniversalNo
    MakeSUBARU
    ModelWRX STI
    SubmodelSERIES.HYPERBLUE
    Beginning Year2016
    Ending Year2016
    Engine TypeH4
    Liter2.5
    CC2458
    Engine FamilySubaru 4-cylinder
    Engine Size2.5L/2458cc
    DrivetrainAWD
    Catalytic Converter PositionRear, Catalytic Converter

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