MagnaFlow Direct Fit Catalytic Converter 97-98 BMW 540i 4.4L / 740I 4.4L / 96-98 740IL 4.4L P/S
MagnaFlow Direct Fit Catalytic Converter 97-98 BMW 540i 4.4L / 740I 4.4L / 96-98 740IL 4.4L P/S
A$1,429.88
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.
We accept
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 mag23058 SFX Item ID 4286350 Accounting SKU mag-23058 Manufacturer SKU 23058 Manufacturer UPC 841380061270 Alternative References 23058, MFL23058, MPE-23058
MagnaFlow Direct Fit Catalytic Converter 97-98 BMW 540i 4.4L / 740I 4.4L / 96-98 740IL 4.4L P/S
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23058. 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 1996-1998 BMW 740iL, 1997-1998 BMW 540i, and more, this direct-fit catalytic converter also interchanges with OE parts 18 30 7 505 322 and 18 30 1 437 354, 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 Federal/EPA Emission systems.
Additional Information
Magnaflow HM Grade Direct-Fit Catalytic Converter
Part Type
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
- 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
| 2899: | No |
| Air Tube Adaptable: | No |
| Air Tube Count: | 0 |
| Anticipated Ship Out Time: | Approximately 1-2 Days |
| Body Length: | 9.000 in. |
| Body Material: | Stainless Steel |
| Body Type: | Spun |
| Body Width: | 4.000 in. |
| CARB Executive Order Number: | Not Applicable |
| Catalytic Converter Air Tube Adapter: | Not Air Tube Kit Adaptable |
| Catalytic Converter Body Material: | Stainless |
| Catalytic Converter Format: | Pre-Catalytic Converter and Main Catalytic Converter |
| Catalytic Converter Overall Length: | 52.5 |
| Clamp Included: | No |
| Clamps Included: | No |
| Components: | Gasket=2 |
| Converter Body Size: | OEM |
| Converter Quantity: | 1 |
| Core Substrate Material: | Ceramic |
| Description: | HM Grade Direct-Fit Catalytic Converter |
| Exhaust Component Mount Type: | Uses Factory Hangers |
| Exhaust Pipe Material: | Stainless Steel |
| Finish: | Stainless Steel |
| Gasket Or Seal Included: | Yes |
| Grade Type: | Regular |
| 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 Gasket Included: | No |
| Outlet Mounting Hardware Included: | No |
| Outlet Outside Diameter: | 2.500 in. |
| Outlet Quantity: | 1 |
| Outlet Type: | Clamp-On |
| Overall Length: | 52.500 in. |
| Oxygen Sensor Location: | None |
| Part Number: | mag23058 |
| Pipe Material: | Stainless Steel |
| Recommended Use: | Converter |
| Sensor Port Count: | 0 |
| Series: | HM Grade |
| Substrate Material: | Ceramic |
| Tube Material: | Stainless Steel |
| Type: | Direct-Fit |
| Universal Or Specific Fit: | Specific |
Product Overview
MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, rather than meets, the highest standards of product performance and efficiency in the industry. MagnaFlow uses both Ceramic and Metallic substrates with different combinations of cell density and wall thickness to meet vehicle specific requirements. MagnaFlow Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority of the Direct-Fit Catalytic Converter products do not require welding, cutting or bending, limited applications may require additional welding for optimal installation.
All Federal catalytic converters meet EPA requirements. Federal Catalytic Converters are not legal for sale, installation or use on vehicles registered in the state of California.
All California State Catalytic converters are CARB compliant. Converters in this catalog are based on Executive Orders issued by the California Air Resource Board and must be used in accordance with this information. In California, it is illegal to select a catalytic converter for installation based solely on vehicle weight and engine size.
• Stainless steel construction
• Formulated for Gas and Diesel Applications
| Additional Application Notes | |
|---|---|
| • Position: Right Heavy Metal Series; 2.5 in. Tubing; 2.5 in. Inlet/Outlet; Overall L-52.50 in.; W-4 in.; Conv L-9 in.; Incl. Gaskets;Not Legal For Sale Or Use On Vehicles Registered In CA | |
| • Position: Right Heavy Metal Series; 2.5 in. Tubing; 2.5 in. Inlet/Outlet; Overall L-52.50 in.; W-4 in.; Conv L-9 in.; Incl. Gaskets;Not Legal For Sale Or Installation In CA/CO/NY | |
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 19:09:55
Product Overview
MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, rather than meets, the highest standards of product performance and efficiency in the industry. MagnaFlow uses both Ceramic and Metallic substrates with different combinations of cell density and wall thickness to meet vehicle specific requirements. MagnaFlow Direct-Fit Catalytic Converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority of the Direct-Fit Catalytic Converter products do not require welding, cutting or bending, limited applications may require additional welding for optimal installation.
All Federal catalytic converters meet EPA requirements. Federal Catalytic Converters are not legal for sale, installation or use on vehicles registered in the state of California.
All California State Catalytic converters are CARB compliant. Converters in this catalog are based on Executive Orders issued by the California Air Resource Board and must be used in accordance with this information. In California, it is illegal to select a catalytic converter for installation based solely on vehicle weight and engine size.
* Stainless steel construction
* Formulated for Gas and Diesel Applications
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
- 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
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
- Precision stamped collector design for optimal exhaust flow, engine efficiency, and fuel economy
Product Details
| 2899: | No |
|---|---|
| Air Tube Adaptable: | No |
| Air Tube Count: | 0 |
| Anticipated Ship Out Time: | Approximately 1-2 Days |
| Body Length: | 9.000 in. |
| Body Material: | Stainless Steel |
| Body Type: | Spun |
| Body Width: | 4.000 in. |
| CARB Executive Order Number: | Not Applicable |
| California Air Resources Board (CARB) Certified: | No |
| California Air Resources Board (CARB): | No |
| California Air Resources Board Approved: | No |
| Catalytic Converter Air Tube Adapter: | Not Air Tube Kit Adaptable |
| Catalytic Converter Body Material: | Stainless |
| Catalytic Converter Format: | Pre-Catalytic Converter and Main Catalytic Converter |
| Catalytic Converter Overall Length: | 52.5 |
| Clamp Included: | No |
| Clamps Included: | No |
| Components: | Gasket=2 |
| Converter Body Size: | OEM |
| Converter Quantity: | 1 |
| Core Substrate Material: | Ceramic |
| Description: | HM Grade Direct-Fit Catalytic Converter |
| Emission: | Non-California (49-State) |
| Exhaust Component Mount Type: | Uses Factory Hangers |
| Exhaust Pipe Material: | Stainless Steel |
| Finish: | Stainless Steel |
| Gasket Or Seal Included: | Yes |
| Grade Type: | Regular |
| 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 Gasket Included: | No |
| Outlet Mounting Hardware Included: | No |
| Outlet Outside Diameter: | 2.500 in. |
| Outlet Quantity: | 1 |
| Outlet Type: | Clamp-On |
| Overall Length: | 52.500 in. |
| Oxygen Sensor Location: | None |
| Part Number: | mag23058 |
| Pipe Material: | Stainless Steel |
| Prop 65 Y/N: | No |
| Recommended Use: | Converter |
| Sensor Port Count: | 0 |
| Series: | HM Grade |
| Substrate Material: | Ceramic |
| Subtitle: | Federal / EPA Compliant Direct-Fit Catalytic Converter |
| Subtitles: | Federal / EPA Compliant |
| Title: | MagnaFlow HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 23058 |
| Tube Material: | Stainless Steel |
| Type: | Direct-Fit |
| Universal Or Specific Fit: | Specific |
| WARNING CA Proposition 65: | No |
Part Type
Catalytic Converter
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
- 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, Stainless Steel, BMW, Passenger Side, Each
MagnaFlow direct-fit catalytic converters are designed for easy bolt-on installation for the professional installer. Welding, cutting, and tube-bending equipment are not required. These cats feature a ribbed body that minimizes expansion and distortion when the converters heat up. The ribs form a channel that protects the cushioning mat from direct exposure to exhaust gases, and they hold the ceramic catalyst in proper alignment. MagnaFlow converters use a monolithic honeycomb catalyst; the ceramic coating is designed for maximum flow and surface area, and the coating method is strictly controlled to maintain exact specifications. Improper coating could result in flow restrictions or an emissions test failure. These converters are designed to exact OE specifications and are available for the most popular vehicle makes and models.
| Product Attributes | |
|---|---|
| Brand | MagnaFlow |
| Manufacturer's Part Number | 23058 |
| Part Type | Catalytic Converters |
| Product Line | MagnaFlow Direct-Fit Catalytic Converters |
| UPC | 841380061270 |
| Inlet Diameter (in.) | 2.50 in. |
| Outlet Diameter (in.) | 2.50 in. |
| Converter Case Material | Stainless steel |
| Converter Substrate Material | Ceramic honeycomb |
| Converter Overall Length (in.) | 52.50 |
| Converter Overall Width (in.) | 4.00 |
| Converter Style | 3-way |
| Remanufactured | No |
| AIR Tube | No |
| Heat Shield | Yes |
| Quantity | Sold individually. |
| Manufacturer Attributes | |
|---|---|
| Air Tube Count | 0 |
| Sensor Port Count | 0 |
| Overall Length | 46.75 |
| Inlet Type | Bolt-On |
| Substrate Material | Ceramic |
| Outlet Type | Clamp-On |
| Clamps Included | No |
| Hangers Included | No |
| Heat Shield Attached | No |
| Inlet Mounting Hardware Included | No |
| Outlet Gasket Included | No |
| Outlet Mounting Hardware Included | No |
| Air Tube Adaptable | No |
| Grade Type | Regular |
| Universal Or Specific Fit | Specific |
| Body Type | Spun |
| Finish | Stainless Steel |
| Tube Material | Stainless Steel |
| Body Material | Stainless Steel |
| Inlet Gasket Included | Yes |
| CARB Executive Order Number | Not Applicable |
| Series | HM Grade |
| Title | MagnaFlow HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 23058 |
| Manufacturer Designation | HM Grade Direct-Fit Catalytic Converter |
| Product Class | Catalytic Converter |
| Construction/Type | Magnaflow HM Grade Direct-Fit Catalytic Converter |
| Product Outline | Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency Precision stamped collector design for optimal exhaust flow, engine efficiency, and fuel economy Simplifies installation with essential gaskets and hardware being included in the box Durable 308 stainless steel MIG welds |
| Vehicle Brief | Catalytic Converter |
| Market Description | Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23058. 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 1996-1998 BMW 740iL, 1997-1998 BMW 540i, and more, this direct-fit catalytic converter also interchanges with OE parts 18 30 7 505 322 and 18 30 1 437 354, 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 Federal/EPA Emission systems. |
Product Details
| 2899: | No |
|---|---|
| Air Tube Adaptable: | No |
| Air Tube Count: | 0 |
| Anticipated Ship Out Time: | Approximately 1-2 Days |
| Body Length: | 9.000 in. |
| Body Material: | Stainless Steel |
| Body Type: | Spun |
| Body Width: | 4.000 in. |
| CARB Executive Order Number: | Not Applicable |
| California Air Resources Board (CARB) Certified: | No |
| California Air Resources Board (CARB): | No |
| California Air Resources Board Approved: | No |
| Catalytic Converter Air Tube Adapter: | Not Air Tube Kit Adaptable |
| Catalytic Converter Body Material: | Stainless |
| Catalytic Converter Format: | Pre-Catalytic Converter and Main Catalytic Converter |
| Catalytic Converter Overall Length: | 52.5 |
| Clamp Included: | No |
| Clamps Included: | No |
| Components: | Gasket=2 |
| Converter Body Size: | OEM |
| Converter Quantity: | 1 |
| Core Substrate Material: | Ceramic |
| Description: | HM Grade Direct-Fit Catalytic Converter |
| Emission: | Non-California (49-State) |
| Exhaust Component Mount Type: | Uses Factory Hangers |
| Exhaust Pipe Material: | Stainless Steel |
| Finish: | Stainless Steel |
| Gasket Or Seal Included: | Yes |
| Grade Type: | Regular |
| 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 Gasket Included: | No |
| Outlet Mounting Hardware Included: | No |
| Outlet Outside Diameter: | 2.500 in. |
| Outlet Quantity: | 1 |
| Outlet Type: | Clamp-On |
| Overall Length: | 52.500 in. |
| Oxygen Sensor Location: | None |
| Part Number: | mag23058 |
| Pipe Material: | Stainless Steel |
| Prop 65 Y/N: | No |
| Recommended Use: | Converter |
| Sensor Port Count: | 0 |
| Series: | HM Grade |
| Substrate Material: | Ceramic |
| Subtitle: | Federal / EPA Compliant Direct-Fit Catalytic Converter |
| Subtitles: | Federal / EPA Compliant |
| Title: | MagnaFlow HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter 23058 |
| 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 | mag23058 |
| SFX Item ID | 4286350 |
| Supplier Item Code | 4286350 |
| Manufacturer SKU | 23058 |
| Manufacturer UPC | 841380061270 |
| Alternative References | mpe-23058, MFL23058, 540i, 4.4L, 740I, 740IL |
Compatibility
| MagnaFlow Direct Fit Catalytic Converter 97-98 BMW 540i 4.4L / 740I 4.4L / 96-98 740IL 4.4L P/S | ||||
|---|---|---|---|---|
| Year Range | Make | Model | Submodels | Region |
| 1997-1998 | BMW | 540i | Base | US |
| 1997-1998 | BMW | 740i | Base | US |
| 1996-1998 | BMW | 740iL | Base | US |
| 2015 | Chevrolet | Express 3500 | Base | 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.
Loading compatibility information...
Keep shopping
