2000 BMW 323i Catalytic Converters

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Keep Your 2000 BMW 323i in Top Shape with Quality Catalytic Converters

Whether you’re repairing or upgrading your Catalytic Converter, using high-quality parts is key to keeping your 2000 BMW 323i looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Catalytic Converter Gaskets and Catalytic Converters. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2000 BMW 323i Catalytic Converter at Advance Auto Parts is around $1,009.74, with a range that starts at $3.99 and goes up to $1,501.99. With 4 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Exhaust Pipe Flange Gasket, Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter, and Direct-Fit HM Grade Federal / EPA Compliant Manifold Catalytic Converter start at just $3.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Catalytic Converter, don’t forget to check out other key components like Exhaust Fittings and Exhaust Manifold and Headers. At Advance Auto Parts, we’re here to help you keep your 2000 BMW 323i in peak condition, inside and out.

Essential 2000 BMW 323i Catalytic Converters

Walker – Exhaust Pipe Flange Gasket (Part No.31309)

Exhaust Pipe Flange Gasket

from

$3.99
Complete your exhaust repair with Walker gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • HEAT RESISTANT – Designed to resist heat for long-lasting performance
  • PREMIUM MATERIALS – Made from high-quality materials for durability and long life
  • ENGINEERING EXPERTISE – Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
  • REAL-WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EASIER TO INSTALL – Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
  • BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
See More

MagnaFlow – Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter (Part No.452176)

Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter

from

$1501.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 452176. 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 452176 includes (2) Flange Gaskets and interchanges with OE parts 11 62 1 732 939, 11 62 7 503 675. 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 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 HM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.50176)

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

from

$1069.00
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 50176. 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 50176 includes (2) Flange Gaskets and interchanges with OE parts 11 62 1 732 939, 11 62 7 503 675. 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
  • 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 Manifold Catalytic Converter (Part No.452175)

Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter

from

$1463.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 452175. 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 452175 includes (2) Flange Gaskets, (2) Bolts and interchanges with OE parts 11 62 1 439 859, 11 62 1 732 935, 11 62 7 503 673, 11 62 7 503 674. 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
  • 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.418005)

Universal California Grade CARB Compliant Catalytic Converter

from

$438.99
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.

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
See More

Most Popular Catalytic Converter Gasket for 2000 BMW 323is

Enhance your 2000 BMW 323i with this popular Catalytic Converter Gasket we have in stock, for $3.99.

Walker – Exhaust Pipe Flange Gasket (Part No.31309)

Exhaust Pipe Flange Gasket

from

$3.99
Complete your exhaust repair with Walker gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES – Offered in a variety of styles and sizes for a quality vehicle repair
  • HEAT RESISTANT – Designed to resist heat for long-lasting performance
  • PREMIUM MATERIALS – Made from high-quality materials for durability and long life
  • ENGINEERING EXPERTISE – Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
  • REAL-WORLD TESTED – Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EASIER TO INSTALL – Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
  • BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
See More

Best-Selling 2000 BMW 323i Catalytic Converters

Upgrade your 323i with one of our 3 best-selling Catalytic Converters.

MagnaFlow – Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter (Part No.452176)

Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter

from

$1501.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 452176. 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 452176 includes (2) Flange Gaskets and interchanges with OE parts 11 62 1 732 939, 11 62 7 503 675. 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 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 Manifold Catalytic Converter (Part No.452175)

Direct-Fit California Grade CARB Compliant Manifold Catalytic Converter

from

$1463.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Manifold Catalytic Converter 452175. 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 452175 includes (2) Flange Gaskets, (2) Bolts and interchanges with OE parts 11 62 1 439 859, 11 62 1 732 935, 11 62 7 503 673, 11 62 7 503 674. 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
  • 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 HM Grade Federal / EPA Compliant Manifold Catalytic Converter (Part No.50176)

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

from

$1069.00
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Manifold Catalytic Converter 50176. 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 50176 includes (2) Flange Gaskets and interchanges with OE parts 11 62 1 732 939, 11 62 7 503 675. 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
  • 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

FAQs for 2000 BMW 323i Catalytic Converters

What are the best-selling Catalytic Converters for 2000 BMW 323is?

Out of 4 Catalytic Converters that fit 2000 BMW 323is, the following parts are the top sellers:

What’s the price range for 2000 BMW 323i Catalytic Converters?

The prices of Catalytic Converters for the 2000 BMW 323i range from $3.99 up to $1,501.99 for the most premium parts.

What is the average price of a Catalytic Converter for a 2000 BMW 323i?

The average price for Catalytic Converters for the 2000 BMW 323i is $1,009.74. Keep in mind the variety of part types within our Catalytic Converter category, where you are likely to find a wide range of prices across a variety of parts and components.

What are the cheapest Catalytic Converters for my 2000 BMW 323i?

The cheapest 2000 BMW 323i Catalytic Converters we carry are:

Does Advance Auto Parts sell Catalytic Converters for any other 2000 BMW models?

Yes. We stock Catalytic Converters for 10 other popular 2000 BMW models. Some of the most popular are 2000 328i Catalytic Converters, 2000 X5 Catalytic Converters, 2000 M5 Catalytic Converters, 2000 Z3 Catalytic Converters, and 2000 540i Catalytic Converters.

What types of Catalytic Converters do you sell for my 2000 BMW 323i?

As of 3/1/26, these are some of the most in-demand types of Catalytic Converters for a 2000 BMW 323i:

Can I get help with 2000 BMW 323i Catalytic Converter orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about BMW Catalytic Converters and more.

What is your return policy for BMW 323i Catalytic Converters?

Advance Auto Parts keeps returns simple. For new BMW 323i Catalytic Converters and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.