BMW 128i Catalytic Converters

Your One-Stop Shop For Trusted BMW 128i Catalytic Converters

If you’re in search of BMW 128i Catalytic Converters aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 9 Catalytic Converters from top brands with prices ranging from $206.99 to $2,669.00.

Beyond great prices, we stock trusted brands manufacturing all types of Catalytic Converters for your BMW 128i.

And don’t forget to read customer reviews across all Catalytic Converters categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Catalytic Converters have to cost top dollar, and we prove it. Browse our top BMW 128i Catalytic Converters below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

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Essential BMW 128i Catalytic Converters

MagnaFlow – Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter (Part No.5531763)

Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter

from

$1261.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 5531763. 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 5531763 includes (2) Bolts, (2) Nuts, (1) Flange Gasket, (4) Flat Washers and interchanges with OE parts 18 30 7 547 840, 18 40 7 545 309, 18 40 7 556 504, 18 40 7 556 990, 18 40 7 558 770, 18 40 7 563 737, 18 40 7 596 879, 18 40 7 646 693. 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
  • 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
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Walker – Ultra Epa Direct Fit Catalytic Converter With Integrated Exhaust Manifold (Part No.14616)

Ultra Epa Direct Fit Catalytic Converter With Integrated Exhaust Manifold

from

$618.99
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker Ultra Direct-Fit Catalytic Converters provide premium performance and are available for import and domestic OBDII (1996 and newer) vehicles.

Product Features:
  • EPA COMPLIANT – For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO and NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
  • EPA COMPLIANT – For use on OBDII vehicles, 1996 and newer. Not legal for sale or use in CA, CO and NY. Legal in ME on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.á
  • DIRECT-FIT DESIGN – Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication and/or welding
  • DIRECT-FIT DESIGNá-áDirect-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installationáthatádoesn’t require specialized fabricationáand/or welding
  • KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES – OE-style high technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application
  • KEEPS CHECK ENGINE LIGHT OFFáFOR EMISSIONS CODESá- OE-style high technologyáwashcoatáand optimaláprecious metal load delivers required reduction in tailpipe emissions to match vehicle application
  • STRONG AND DURABLE – Features thick OE-style flanges, hangers and brackets for strength and durability
  • STRONGáANDáDURABLEá-áFeatures thick OE-style flanges, hangersáandábrackets for strength andádurability
  • APPLICATION-ENGINEERED – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
  • APPLICATION-ENGINEERED -áFeatures 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 emissions and structural integrity warranty. Visit Walkerexhaust.com for details.
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MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.49763)

Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter

from

$1427.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 49763. 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 49763 includes (1) Flange Gasket, (2) Bolts, (2) Nuts, (4) Flat Washers and interchanges with OE parts 18 30 7 547 840, 18 40 7 545 309, 18 40 7 556 504, 18 40 7 556 990, 18 40 7 558 770, 18 40 7 563 737, 18 40 7 596 879, 18 40 7 646 693. 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:
  • 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
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

Walker – CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) (Part No.84205)

CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)

from

$206.99
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
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MagnaFlow – Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.50291)

Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter

from

$1141.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 50291. 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 50291 includes (4) Flat Washers, (2) Nuts, (1) Flange Gasket, (2) Bolts and interchanges with OE parts 18 30 7 547 840, 18 40 7 545 309, 18 40 7 556 504, 18 40 7 556 990, 18 40 7 558 770, 18 40 7 563 737, 18 40 7 596 879, 18 40 7 646 693. 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:
  • Simplifies installation with essential gaskets and hardware being included in the box
  • 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
See More

MagnaFlow – Universal California Grade CARB Compliant Catalytic Converter (Part No.5671404)

Universal California Grade CARB Compliant Catalytic Converter

from

$476.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5671404. 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
  • 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
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last
See More

MagnaFlow – Direct-Fit California Grade CARB Compliant Catalytic Converter (Part No.5671238)

Direct-Fit California Grade CARB Compliant Catalytic Converter

from

$2669.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5671238. 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 5671238 includes (1) Torca Clamp. 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 crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency
  • 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
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.49762)

Direct-Fit OEM Grade Federal / EPA Compliant Manifold Catalytic Converter

from

$1412.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 49762. 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 49762 includes (2) Bolts, (2) Nuts, (1) Flange Gasket, (4) Flat Washers and interchanges with OE parts 18 30 7 544 510, 18 40 7 545 308, 18 40 7 556 503, 18 40 7 556 792, 18 40 7 556 989, 18 40 7 558 769, 18 40 7 559 062, 18 40 7 563 736, 18 40 7 563 738, 18 40 7 565 099, 18 40 7 596 877, 18 40 7 596 878, 18 40 7 646 692, 18 40 7 646 694. 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:
  • 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
  • Simplifies installation with essential gaskets and hardware being included in the box
  • Durable 308 stainless steel MIG welds
See More

MagnaFlow – Direct-Fit California Grade CARB Compliant Catalytic Converter (Part No.5671990)

Direct-Fit California Grade CARB Compliant Catalytic Converter

from

$2669.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5671990. 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. 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:
  • Simplifies installation with essential gaskets and hardware being included in the box
  • 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
See More

Catalytic Converters Brands You Can Trust For Your BMW 128i

2 trusted brands of Catalytic Converters line our shelves, ready to help keep your BMW 128i running smooth. Below are some of the most popular brands and their top Catalytic Converters offerings:

Most Purchased BMW 128i Catalytic Converters from MagnaFlow

When you buy the most frequently purchased MagnaFlow brand Catalytic Converters, you can be confident it will be the right part for your BMW 128i. Here are the MagnaFlow Catalytic Converters Advanced Auto customers buy the most:
Direct-Fit California Grade CARB Compliant Catalytic Converter
from $2669.00
This product is not rated
Direct-Fit California Grade CARB Compliant Catalytic Converter
Catalytic Converters
Direct-Fit California Grade CARB Compliant Catalytic Converter
from $2669.00
This product is not rated
Direct-Fit California Grade CARB Compliant Catalytic Converter
Catalytic Converters
Ultra Epa Direct Fit Catalytic Converter With Integrated Exhaust Manifold
from $618.99
This product is not rated
Ultra Epa Direct Fit Catalytic Converter With Integrated Exhaust Manifold
Catalytic Converters

FAQs for BMW 128i Catalytic Converters

What are the most purchased Catalytic Converters for the BMW 128i?

Out of 9 Catalytic Converters for the BMW 128i, the most popular in our inventory are:
Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter
from $1141.99
This product is not rated
Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter
Catalytic Converters
Ultra Epa Direct Fit Catalytic Converter With Integrated Exhaust Manifold
from $618.99
This product is not rated
Ultra Epa Direct Fit Catalytic Converter With Integrated Exhaust Manifold
Catalytic Converters
Direct-Fit California Grade CARB Compliant Catalytic Converter
from $2669.00
This product is not rated
Direct-Fit California Grade CARB Compliant Catalytic Converter
Catalytic Converters