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MagnaFlow 16-17 Cadillac CT6 3.0L Direct Fit Converter

SKU: MAG21-914

Catalytic Converters

MAG Converter Direct Fit

MagnaFlow 16-17 Cadillac CT6 3.0L Direct Fit Converter

SKU: MAG21-914

Catalytic Converters

MAG Converter Direct Fit

A$1,549.24
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing at the time of ordering.
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Description

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-914. 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. This direct-fit catalytic converter is designed specifically for the 2016-2019 Cadillac CT6 and interchanges with OE parts 12689673 and 12668677, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. 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 21-914. 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. This direct-fit catalytic converter is designed specifically for the 2016-2019 Cadillac CT6 and interchanges with OE parts 12689673 and 12668677, among others. 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:Not Air Tube Kit Adaptable
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
Gasket Or Seal Included:Yes
Grade Type:Regular
Hanger Included:No
Hangers Included:No
Heat Shield Attached:No
Heat Shield Material:None
Inlet Attachment Type:Bolt-On
Inlet Attachment:Bolt-On
Inlet Gasket Included:Yes
Inlet Inside Diameter:2.500 in.
Inlet Mounting Hardware Included:No
Inlet Type:Bolt-On
Main Piping Diameter:2.500 in.
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Attachment Type:Clamp-On
Outlet Attachment:Clamp-On
Outlet Gasket Included:No
Outlet Mounting Hardware Included:No
Outlet Type:Clamp-On
Overall Length:24.875 in.
Oxygen Sensor Location:Pre Converter and Midbed
Part Number:mag21-914
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Sensor Port Count:2
Series:OEM Grade
Substrate Material:Ceramic
Subtitle:Federal / EPA Compliant Direct-Fit Catalytic Converter
Subtitles:Federal / EPA Compliant
Title:MagnaFlow 2016-2019 Cadillac CT6 OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
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: 2026-09-29 07:30:46

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
21-914
Product Attributes - Part Type
Catalytic Converters
Product Attributes - Product Line
MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converters
Product Attributes - UPC
888563139746
Product Attributes - Inlet Quantity
1
Product Attributes - Converter Inlet Attachment
Stock flange
Product Attributes - Outlet Quantity
1
Product Attributes - Converter Outlet Attachment
Slip fit
Product Attributes - Converter Case Material
Stainless steel
Product Attributes - Converter Substrate Material
Ceramic substrate
Product Attributes - Converter Overall Length (in.)
24.88
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 mag21-914
SFX Item ID 4289531
Supplier Item Code 4289531
Manufacturer SKU 21-914
Manufacturer UPC 888563139746
Alternative References MFL21-914, MPE-21-914, CT6, 3.0L

Compatibility

Application Data
  • MakeCADILLAC
    ModelCT6
    SubmodelLUXURY
    Beginning Year2016
    Ending Year2018
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelLUXURY
    Beginning Year2016
    Ending Year2018
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelLUXURY
    Beginning Year2016
    Ending Year2018
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainRWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelLUXURY
    Beginning Year2016
    Ending Year2018
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainRWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelPLATINUM
    Beginning Year2016
    Ending Year2019
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelPLATINUM
    Beginning Year2016
    Ending Year2019
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelPREMIUM LUXURY
    Beginning Year2016
    Ending Year2018
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelPREMIUM LUXURY
    Beginning Year2016
    Ending Year2018
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelSPORT
    Beginning Year2019
    Ending Year2019
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6
  • MakeCADILLAC
    ModelCT6
    SubmodelSPORT
    Beginning Year2019
    Ending Year2019
    Engine TypeV6
    Liter3.0
    CID182
    Engine FamilyGM V6
    Engine Size3.0L/182
    DrivetrainAWD
    Catalytic Converter PositionLeft
    Engine VIN Code6

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