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MagnaFlow 08-13 128i 3 L Underbody Direct Fit Converter

SKU: MAG21-990

Catalytic Converters

MAG Converter Direct Fit...

MagnaFlow 08-13 128i 3 L Underbody Direct Fit Converter

SKU: MAG21-990

Catalytic Converters

MAG Converter Direct Fit...

A$2,047.55
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

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-990. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this 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 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 to fit the 2008-2013 BMW 128i 3.0L. MagnaFlow 21-990 includes (1) Torca Clamp. 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 21-990. 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 2008-2013 BMW 128i. Hardware is included to eliminate the hassle of working with corroded factory parts. 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
  • Torca AccuSeal® Exhaust Clamps provide a full 360-degree equally distributed clamping force preventing pipe distortion while creating a complete seal and maintaining serviceability
  • 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
  • Torca Accuseal Exhaust Clamps Provide A Full 360-Degree Equally Distributed Clamping Force
  • High Strength 16 Gauge 409 Stainless Steel Tubing For Exceptional Corrosion Resistance And Maximum Service Life
  • Durable 308 Stainless Steel Mig Welds
  • 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
  • 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 Height:4.000 in.
Body Length:8.000 in.
Body Material:Stainless Steel
Body Shape:Round
Body Type:Spun
Body Width:4.000 in.
CARB Executive Order Number:Not Applicable
California Air Resources Board (CARB) Certified:No
Catalytic Converter Air Tube Adapter:No
Clamp Included:Yes
Clamps Included:Yes
Converter Quantity:1
Core Substrate Material:Ceramic
Description:OEM Grade Direct-Fit Catalytic Converter
Finish:Stainless Steel
Gasket Included:No
Gasket Or Seal Included:No
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 Diameter:2.000 in.
Inlet Gasket Included:No
Inlet Inside Diameter:2.000 in.
Inlet Mounting Hardware Included:No
Inlet Quantity:1
Inlet Type:Bolt-On
Main Piping Diameter:2.000 in.
Material:Stainless Steel
Mounting Hardware Included:Yes
Outlet Attachment Type:Clamp-On
Outlet Attachment:Clamp-On
Outlet Diameter:2.000 in.
Outlet Gasket Included:No
Outlet Inside Diameter:2
Outlet Mounting Hardware Included:Yes
Outlet Outside Diameter:2.000 in.
Outlet Quantity:1
Outlet Type:Clamp-On
Overall Length:48.000 in.
Oxygen Sensor Location:None
Part Number:mag21-990
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Sensor Port Count:0
Series:OEM Grade
Substrate Material:Ceramic
Substrate:Ceramic
Subtitle:Federal / EPA Compliant Direct-Fit Catalytic Converter
Subtitles:Federal / EPA Compliant
Title:MagnaFlow 2008-2013 BMW 128i 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: 2026-10-13 22:22:36

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
  • Torca Accuseal Exhaust Clamps Provide A Full 360-Degree Equally Distributed Clamping Force
  • 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
21-990
Product Attributes - Part Type
Catalytic Converters
Product Attributes - Product Line
MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converters
Product Attributes - UPC
888563153339
Product Attributes - Inlet Quantity
1
Product Attributes - Inlet Diameter (in.)
2.00 in.
Product Attributes - Converter Inlet Attachment
Stock flange
Product Attributes - Outlet Quantity
1
Product Attributes - Outlet Diameter (in.)
2.00 in.
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.)
48.00
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 mag21-990
SFX Item ID 4289540
Supplier Item Code 4289540
Manufacturer SKU 21-990
Manufacturer UPC 888563153339
Alternative References MFL21-990, MPE-21-990, 128i

Compatibility

Application Data
  • MakeBMW
    Model128I
    SubmodelBASE
    Beginning Year2008
    Ending Year2013
    Engine TypeL6
    Liter3.0
    CC2996
    Engine FamilyBMW L6 GAS
    Engine Size3.0L/2996cc
    DrivetrainRWD
    Catalytic Converter PositionRight
  • MakeBMW
    Model128I
    SubmodelBASE
    Beginning Year2008
    Ending Year2013
    Engine TypeL6
    Liter3.0
    CC2996
    Engine FamilyBMW L6 GAS
    Engine Size3.0L/2996cc
    DrivetrainRWD
    Catalytic Converter PositionRight
  • MakeBMW
    Model128I
    SubmodelBASE
    Beginning Year2008
    Ending Year2013
    Engine TypeL6
    Liter3.0
    CC2996
    Engine FamilyBMW L6 GAS
    Engine Size3.0L/2996cc
    DrivetrainRWD
    Catalytic Converter PositionRight

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