BMW 540i Catalytic Converters

Your One-Stop Shop For Trusted BMW 540i Catalytic Converters

If you’re in search of BMW 540i Catalytic Converters aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 12 Catalytic Converters from top brands with prices ranging from $129.99 to $1,575.00.

Beyond great prices, we stock trusted brands manufacturing all types of Catalytic Converters for your BMW 540i.

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 540i 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 540i Catalytic Converters

MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49786 (Part No.49786)

MagnaFlow Oem Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 49786

from

$1042.00
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49786. 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 49786 interchanges with OE parts 18 30 1 437 546. 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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4481683 (Part No.4481683)

MagnaFlow California Grade Carb Compliant Direct-Fit Catalytic Converter, 4481683

from

$1575.00
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 4481683. 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 1997-1998 BMW 540i 4.4L & 1996-1998 BMW 740iL 4.4L. MagnaFlow 4481683 includes (2) Donut Gaskets and interchanges with OE parts 18 30 1 437 354, 18 30 1 709 618, 18 30 1 745 129, 18 30 1 745 666, 18 30 7 505 322. 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.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 3322305 (Part No.3322305)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 3322305

from

$611.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322305. 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.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99775HM (Part No.99775HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99775HM

from

$277.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99775HM. 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 Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23306 (Part No.23306)

MagnaFlow Hm Grade Federal / Epa Compliant Direct-Fit Catalytic Converter, 23306

from

$807.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23306. 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 23306 includes (2) Donut Gaskets and interchanges with OE parts 18 30 1 437 353, 18 30 1 709 617, 18 30 1 745 128, 18 30 1 745 665, 18 30 7 505 321. 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.
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MagnaFlow – MagnaFlow Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94005 (Part No.94005)

MagnaFlow Standard Grade Federal / Epa Compliant Universal Catalytic Converter, 94005

from

$129.99
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Universal Catalytic Converter 94005. 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.
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MagnaFlow – MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51775 (Part No.51775)

MagnaFlow Oem Grade Federal / Epa Compliant Universal Catalytic Converter, 51775

from

$342.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51775. 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.
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Walker – "Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25""Outlet (ID), 81311" (Part No.81311)

"Walker CalCat CARB Universal Catalytic Converter 2.25"" Inlet (ID) 2.25""Outlet (ID), 81311"

from

$454.99
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. Walker CalCat catalytic converters are thoroughly tested to ensure they meet CARB performance requirements.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99204HM (Part No.99204HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99204HM

from

$196.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99204HM. 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 Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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MagnaFlow – MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM (Part No.99206HM)

MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM

from

$196.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Universal Catalytic Converter 99206HM. 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 Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
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MagnaFlow – MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418005 (Part No.418005)

MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418005

from

$477.99
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.
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Walker – "Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93236" (Part No.93236)

"Walker Ultra EPA Universal Catalytic Converter 2"" Inlet (ID) 2"" Outlet (ID), 93236"

from

$246.99
Designed to meet EPA emissions requirements while delivering premium performance and durability, Walker Ultra universal catalytic converters fit import and domestic OBDII (1996 and newer) vehicles. Each converter features an OE style high technology washcoat with an optimal precious metal load for assured compliance.
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Catalytic Converters Brands You Can Trust For Your BMW 540i

2 trusted brands of Catalytic Converters line our shelves, ready to help keep your BMW 540i running smooth. Below are some of the most popular brands and their top Catalytic Converters offerings:

Most Purchased BMW 540i 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 540i. Here are the MagnaFlow Catalytic Converters Advanced Auto customers buy the most:
MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418005
from $477.99
This product is not rated
MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418005
Catalytic Converters

FAQs for BMW 540i Catalytic Converters

What are the most purchased Catalytic Converters for the BMW 540i?

Out of 12 Catalytic Converters for the BMW 540i, the most popular in our inventory are:
MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418005
from $477.99
This product is not rated
MagnaFlow California Grade Carb Compliant Universal Catalytic Converter, 418005
Catalytic Converters
MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM
from $196.99
This product is not rated
MagnaFlow Hm Grade Federal / Epa Compliant Universal Catalytic Converter, 99206HM
Catalytic Converters