2012 BMW M3 Catalytic Converters

Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94004. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design. With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.

Product Features:

• Durable 308 stainless steel MIG welds
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• Compact, lightweight construction enables installation in confined areas, welding is required
• Durable 308 stainless steel MIG welds
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life

Product Features:

• EPA COMPLIANT – For use on pre-OBDII vehicles, 1995 and older. Not legal for sale or use in CA, CO and NY. Legal in ME on all pre-OBD vehicles only. Consult your state’s aftermarket converter regulations for details.
• NO BREAK IN REQUIRED – Ready to operate with application-specific converter shell design and mat compression, no converter break in required after installation
• DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
• OE-STYLE DESIGN – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
• BUY WITH CONFIDENCE – Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 50,000-mile/80,000-kilometer structural integrity limited warranty. Visit Walkerexhaust.com for details.

Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

• CARB COMPLIANT : For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
• SUPERIOR TECHNOLOGY : Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
• CONSISTENT PERFORMANCE : Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
• DURABLE : Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION : Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
• BUY WITH CONFIDENCE : Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty

Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

• CARB COMPLIANT – For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
• SUPERIOR TECHNOLOGY – Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
• CONSISTENT PERFORMANCE – Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
• DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
• BUY WITH CONFIDENCE – Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity limited warranty

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52931. 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 52931 includes (2) Split Lock Washers, (2) Bolts, (2) Flat Washers, (2) Nuts and interchanges with OE parts 18 32 7 848 044. 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 Features:

• 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
• 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
• Simplifies installation with essential gaskets and hardware being included in the box
• Durable 308 stainless steel MIG welds

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49800. 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 M3 4.0L. MagnaFlow 49800 includes (2) Torca Clamps and interchanges with OE parts 18 30 7 840 684, 18 30 7 848 117. 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 Features:

• 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
• 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

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418054. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. 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 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 Features:

• Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
• Durable 308 stainless steel MIG welds
• Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life

Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

• SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
• CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
• DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
• BUY WITH CONFIDENCE — Backed by Walker’s emissionsáandástructural integrity warranty.áVisit Walkerexhaust.com for details

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418005. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. 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 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 Features:

• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• Compact, lightweight construction enables installation in confined areas, welding is required
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• Your trusted source for CARB-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

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418004. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. 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 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 Features:

• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
• Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
• Compact, lightweight construction enables installation in confined areas, welding is required
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 448304. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. 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 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 Features:

• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• Durable 308 stainless steel MIG welds
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• Compact, lightweight construction enables installation in confined areas, welding is required
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52925. 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 2015-2018 BMW M3 3.0L & 2015-2020 BMW M4 3.0L. MagnaFlow 52925 includes (2) Torca Clamps and interchanges with OE parts 18 30 7 851 178, 18 30 8 094 373. 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 Features:

• Simplifies installation with essential gaskets and hardware being included in the box
• 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
• OE-sized barbed exhaust hangers made from corrosion-resistant 410 stainless steel, designed to reduce noise and vibration
• 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
• Simplifies installation with essential gaskets and hardware being included in the box
• Durable 308 stainless steel MIG welds

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322304. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. 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 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 Features:

• Durable 308 stainless steel MIG welds
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• Durable 308 stainless steel MIG welds
• Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last

Walker an industry leader for import And domestic applications, offers Walker CalCat Universal Catalytic Converters, available for OBDII (1996 And newer) vehicles And Pre-OBD (1995 And older) vehicles, specifically formulated to comply with California Air Resource Board (CARB) regulations. Walker CalCat Catalytic Converters are legal for sale in the state of California, And any state complying with California regulations.

Product Features:

• Legal for sale in the state of California, complies with C.A.R.B. regulations
• Stainless steel body with aluminized pipe and heat shields for durability
• Expandable bushings for custom installation requirements
• Universal converter may require modification to complete installation

Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:

• CARB COMPLIANT : For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
• SUPERIOR TECHNOLOGY : Optimal high technology wash coat formulated to deliver superior performance (as compared to EPA-compliant converters)
• CONSISTENT PERFORMANCE : Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
• DURABLE : Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION : Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
• BUY WITH CONFIDENCE : Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 24021. 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 24021 includes (2) Torca Clamps and interchanges with OE parts 18 30 1 744 162. 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 Features:

• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
• 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
• 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

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481664. 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 4481664 includes (2) Torca Clamps and interchanges with OE parts 18 30 1 744 162. 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 Features:

• Durable 308 stainless steel MIG welds
• Your trusted source for CARB-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
• 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

Product Features:

• EPA COMPLIANT – For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO & NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
• KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES – OE-style high-technology wash coat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
• DURABLE – Features stainless-steel body with aluminized pipe and heat shields for durability
• FLEXIBLE SOLUTION – Customizable design features expandable bushings for easy fitment and may require specialized fabrication and welding for installation
• OE-STYLE DESIGN – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
• BUY WITH CONFIDENCE – Backed by Walker’s 25,000-mile/40,000-kilometer emissions and 50,000-mile/80,000-kilometer structural integrity limited warranty. Visit Walkerexhaust.com for details.

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 337104. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. 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 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 Features:

• Durable 308 stainless steel MIG welds
• Compact, lightweight construction enables installation in confined areas, welding is required
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
• Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last

Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 338104. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. 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 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 Features:

• 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 while delivering quality that will last
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off
• Compact, lightweight construction enables installation in confined areas, welding is required
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 50415. 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 50415 includes (3) Flange Gaskets and interchanges with OE parts 11 62 7 832 063, 11 62 7 834 673. 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 Features:

• 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
• 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
• Durable 308 stainless steel MIG welds

Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206. The Universal design allows the part to fit a wide array of vehicles, and the stainless steel construction of this catalytic converter is highly resistant to corrosion. The single laser fusion welds greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. 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 Features:

• Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
• 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
• High strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and maximum service life
• Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off