MagnaFlow Direct Fit Catalytic Converter 2012-2016 Buick LaCrosse/ 2012-2015 Buick Regal 2.4
MagnaFlow Direct Fit Catalytic Converter 2012-2016 Buick LaCrosse/ 2012-2015 Buick Regal 2.4
A$1,085.85
LAST ONE! Est Ship 3-5 days.
LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description
IMPORTANT NOTICE: Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.Reference Information Reference Data (Provide these details to our support team) Brand Name/s Magnaflow, MagnaFlow Exhaust Products, MAGNAFLOW PERF EXHAUST, Magnaflow Performance StreetFX SKU mag21-177 SFX Item ID 4286938 Accounting SKU mag-21-177 Manufacturer SKU 21-177 Manufacturer UPC 888563000000 Alternative References 21-177, MFL21-177, MPE-21-177
OEM Grade
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-177. 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. MagnaFlow 21-177 interchanges with OE parts 13229529, 20912670, 20960849, 20973114, 20991687, 22935121, 22935125. 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.
Additional Information
Magnaflow OEM Grade Direct-Fit Catalytic Converter
Features and Benefits
- 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
- 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
Product Details
| Air Tube Adaptable: | No |
| Air Tube Count: | 0 |
| Body Height: | 4 |
| Body Length: | 9.125 |
| Body Material: | Stainless Steel |
| Body Shape: | Round |
| Body Type: | Spun |
| Body Width: | 4.000 in. |
| CARB Executive Order Number: | Not Applicable |
| 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: | Yes |
| Heat Shield Attached: | No |
| Heat Shield Material: | None |
| Inlet Attachment: | Bolt-On |
| Inlet Diameter: | 2.25 |
| Inlet Gasket Included: | No |
| Inlet Inside Diameter: | 2.25 |
| Inlet Mounting Hardware Included: | No |
| Inlet Quantity: | 1 |
| Inlet Type: | Bolt-On |
| Main Piping Diameter: | 2.25 |
| Material: | Stainless Steel |
| Mounting Hardware Included: | Yes |
| Outlet Attachment: | Bolt-On |
| Outlet Diameter: | 2.25 |
| Outlet Gasket Included: | No |
| Outlet Inside Diameter: | 2.25 |
| Outlet Mounting Hardware Included: | No |
| Outlet Outside Diameter: | 2.250 in. |
| Outlet Quantity: | 1 |
| Outlet Type: | Bolt-On |
| Overall Length: | 38 |
| Oxygen Sensor Location: | Pre Converter |
| Part Number: | mag21-177 |
| Pipe Material: | Stainless Steel |
| Sensor Port Count: | 1 |
| Series: | OEM Grade |
| Substrate Material: | Ceramic |
| Substrate: | Ceramic |
| Tube Material: | Stainless Steel |
| Type: | Direct-Fit |
| Universal Or Specific Fit: | Specific |
Product Overview
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-177. 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 2011-2015 Buick Regal, 2010-2016 Buick LaCrosse, and more, this direct-fit catalytic converter also interchanges with OE parts 22935121 and 22935125, among others. 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.
| Additional Application Notes | |
|---|---|
| • OEM Grade Series; Bolt-On Outlet Attachment; 2.250 in. Tubing; Overall L-38.125 in.;Not Legal For Sale Or Use On Vehicles Registered In CA Excluding Partial Zero Emissions Vehicles (PZEV) | |
| • OEM Grade; 2.5 in. Inlet Dia.; Stainless Steel; Overall L-38 in.;Not Legal For Sale Or Installation In CA/CO/NY Direct-Fit OEM Grade Federal [Exc.CA] | |
| • Partial Zero Emissions Vehicles (PZEV) OEM Grade Series; Bolt-On Outlet Attachment; 2.250 in. Tubing; Overall L-38.125 in.;Not Legal For Sale Or Use On Vehicles Registered In CA | |
| • Partial Zero Emissions Vehicles (PZEV) OEM Grade Series; Bolt-On Outlet Attachment; 2.250 in. Tubing; Overall L-38.125 in.;Not Legal For Sale Or Use On Vehicles Registered In CA Excluding Partial Zero Emissions Vehicles (PZEV) | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
Data: v2 - Desc: v4.2 - Upd: 2026-10-13 19:11:11
Product Overview
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-177. 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 2011-2015 Buick Regal, 2010-2016 Buick LaCrosse, and more, this direct-fit catalytic converter also interchanges with OE parts 22935121 and 22935125, among others. 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
- Torca Accuseal Exhaust Clamps Provide A Full 360-Degree Equally Distributed Clamping Force
- OE-Sized Barbed Exhaust Hangers Made From Corrosion-Resistant 410 Stainless Steel
- 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
Product Details
| Air Tube Adaptable: | No |
|---|---|
| Air Tube Count: | 0 |
| Body Height: | 4 |
| Body Length: | 9.125 |
| 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: | 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: | Yes |
| Heat Shield Attached: | No |
| Heat Shield Material: | None |
| Inlet Attachment: | Bolt-On |
| Inlet Diameter: | 2.25 |
| Inlet Gasket Included: | No |
| Inlet Inside Diameter: | 2.25 |
| Inlet Mounting Hardware Included: | No |
| Inlet Quantity: | 1 |
| Inlet Type: | Bolt-On |
| Main Piping Diameter: | 2.25 |
| Material: | Stainless Steel |
| Mounting Hardware Included: | Yes |
| Outlet Attachment: | Bolt-On |
| Outlet Diameter: | 2.25 |
| Outlet Gasket Included: | No |
| Outlet Inside Diameter: | 2.25 |
| Outlet Mounting Hardware Included: | No |
| Outlet Outside Diameter: | 2.250 in. |
| Outlet Quantity: | 1 |
| Outlet Type: | Bolt-On |
| Overall Length: | 38 |
| Oxygen Sensor Location: | Pre Converter |
| Part Number: | mag21-177 |
| Pipe Material: | Stainless Steel |
| Prop 65 Y/N: | No |
| Sensor Port Count: | 1 |
| Series: | OEM Grade |
| Substrate Material: | Ceramic |
| Substrate: | Ceramic |
| Subtitle: | Federal / EPA Compliant Direct-Fit Catalytic Converter |
| Title: | MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 21-177 |
| Tube Material: | Stainless Steel |
| Type: | Direct-Fit |
| Universal Or Specific Fit: | Specific |
| WARNING CA Proposition 65: | No |
Part Type
Catalytic Converters
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
- 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
Catalytic Converter, OEM Grade, Federal/EPA Compliant, Direct-Fit, Rear Position, 38.125 in. Overall Length, Buick, 2.4L, Each
MagnaFlow OEM Grade Federal/EPA Compliant direct-fit catalytic converters provide your vehicle with high-emission compliance, the latest technology, and premium-grade components. Along with those benefits, you also get their industry-leading warranties, so you can drive with confidence. MagnaFlow converters are designed to the exact original equipment specifications, while being engineered to keep the "Check Engine Light" off.
Features include:
• Stainless steel construction
• CNC-precision robotic manufacturing
• Meets or exceeds EPA emissions requirements
• Hassle-free, OE-like fitment tailored to your specific application
• Limited 5-year/50,000 mile warranty on construction
• Limited 25,000 mile warranty on emissions
| Product Attributes | |
|---|---|
| Brand | MagnaFlow |
| Manufacturer's Part Number | 21-177 |
| Part Type | Catalytic Converters |
| UPC | 888563156866 |
| Inlet Quantity | 1 |
| Inlet Diameter (in.) | 2.25 in. |
| Converter Inlet Attachment | Stock flange |
| Outlet Quantity | 1 |
| Outlet Diameter (in.) | 2.25 in. |
| Converter Outlet Attachment | Stock flange |
| Converter Case Material | Stainless steel |
| Converter Substrate Material | Ceramic substrate |
| Converter Overall Length (in.) | 38.13 |
| Converter Style | 3-way |
| Remanufactured | No |
| AIR Tube | No |
| Heat Shield | No |
| Quantity | Sold individually. |
Product Details
| Air Tube Adaptable: | No |
|---|---|
| Air Tube Count: | 0 |
| Body Height: | 4 |
| Body Length: | 9.125 |
| 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: | 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: | Yes |
| Heat Shield Attached: | No |
| Heat Shield Material: | None |
| Inlet Attachment: | Bolt-On |
| Inlet Diameter: | 2.25 |
| Inlet Gasket Included: | No |
| Inlet Inside Diameter: | 2.25 |
| Inlet Mounting Hardware Included: | No |
| Inlet Quantity: | 1 |
| Inlet Type: | Bolt-On |
| Main Piping Diameter: | 2.25 |
| Material: | Stainless Steel |
| Mounting Hardware Included: | Yes |
| Outlet Attachment: | Bolt-On |
| Outlet Diameter: | 2.25 |
| Outlet Gasket Included: | No |
| Outlet Inside Diameter: | 2.25 |
| Outlet Mounting Hardware Included: | No |
| Outlet Outside Diameter: | 2.250 in. |
| Outlet Quantity: | 1 |
| Outlet Type: | Bolt-On |
| Overall Length: | 38 |
| Oxygen Sensor Location: | Pre Converter |
| Part Number: | mag21-177 |
| Pipe Material: | Stainless Steel |
| Prop 65 Y/N: | No |
| Sensor Port Count: | 1 |
| Series: | OEM Grade |
| Substrate Material: | Ceramic |
| Substrate: | Ceramic |
| Subtitle: | Federal / EPA Compliant Direct-Fit Catalytic Converter |
| Title: | MagnaFlow OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 21-177 |
| Tube Material: | Stainless Steel |
| Type: | Direct-Fit |
| Universal Or Specific Fit: | Specific |
| WARNING CA Proposition 65: | No |
Reference Information
| Brand Name/s | Magnaflow |
|---|---|
| StreetFX SKU | mag21-177 |
| SFX Item ID | 4286938 |
| Supplier Item Code | 4286938 |
| Manufacturer SKU | 21-177 |
| Manufacturer UPC | 888563000000 |
| Alternative References | mpe-21-177, MFL21-177 |
Compatibility
| MagnaFlow Direct Fit Catalytic Converter 2012-2016 Buick LaCrosse/ 2012-2015 Buick Regal 2.4 | ||||
|---|---|---|---|---|
| Year Range | Make | Model | Submodels | Region |
| 2010-2016 | Buick | LaCrosse | CX, CXL, Base, Convenience, Leather, Premium | US |
| 2011-2015 | Buick | Regal | CXL, Base, Premium | US |
| 2014 | Chevrolet | Impala | Eco | US |
| 2013-2014 | Chevrolet | Malibu | Eco | US |
Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.
Detailed Compatibility
| Application Data | |
|---|---|
| Universal | No |
| Make | BUICK |
| Model | LACROSSE |
| Submodel | BASE |
| Beginning Year | 2012 |
| Ending Year | 2012 |
| Engine Type | L4 |
| Liter | 2.4 |
| CID | 145 |
| CC | 2384 |
| Engine Family | GM Gas/Electric hybrid 4-cylinder |
| Engine Size | 2.4L/145 |
| Drivetrain | AWD |
| Catalytic Converter Position | Rear, Catalytic Converter |
| Engine VIN Code | R |
| Universal | No |
| Make | BUICK |
| Model | LACROSSE |
| Submodel | BASE |
| Beginning Year | 2012 |
| Ending Year | 2016 |
| Engine Type | L4 |
| Liter | 2.4 |
| CID | 145 |
| CC | 2384 |
| Engine Family | GM Gas/Electric hybrid 4-cylinder |
| Engine Size | 2.4L/145 |
| Drivetrain | FWD |
| Catalytic Converter Position | Rear, Catalytic Converter |
| Engine VIN Code | R |
| Universal | No |
| Make | BUICK |
| Model | LACROSSE |
| Submodel | CONVENIENCE |
| Beginning Year | 2012 |
| Ending Year | 2012 |
| Engine Type | L4 |
| Liter | 2.4 |
| CID | 145 |
| CC | 2384 |
| Engine Family | GM Gas/Electric hybrid 4-cylinder |
| Engine Size | 2.4L/145 |
| Drivetrain | AWD |
| Catalytic Converter Position | Rear, Catalytic Converter |
| Engine VIN Code | R |
This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.
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