2000 BMW 323i Catalytic Converters
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 $733.99, with a range that starts at $3.99 and goes up to $1,463.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Exhaust Pipe Flange Gasket and Direct-Fit California Grade Catalytic Converter with Integrated Exhaust Manifold 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 System Kits. At Advance Auto Parts, we’re here to help you keep your 2000 BMW 323i in peak condition, inside and out.
Find Your Specific 2000 BMW 323i Catalytic Converters
Looking for the perfect Catalytic Converter for your 2000 BMW 323i? You’re in the right place. Below, you’ll find links to various types of Catalytic Converters that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Catalytic Converters, ensuring durability and a precise fit for your BMW 323i. Whether you’re driving a 2000 model or another popular model year like
1999, we’ve got you covered. Purchasing Catalytic Converters from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Catalytic Converters that fit your vehicle.
Essential 2000 BMW 323i Catalytic Converters
Walker – Exhaust Pipe Flange Gasket (Part No.31309)
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:
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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
MagnaFlow – California Universal Catalytic Converter – 2.25" (Part No.418005)
from
$438.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 418005 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design, cutting and welding is required. 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 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:
See More
Product Features:
- 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
- Compact, lightweight construction enables installation in confined areas, welding is required
- Durable 308 stainless steel MIG welds
MagnaFlow – Direct-Fit California Grade Catalytic Converter with Integrated Exhaust Manifold (Part No.452175)
from
$1463.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 452175. 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 1999-2000 BMW 323i, 1999-2000 BMW Z3, and more, this direct-fit catalytic converter also interchanges with OE parts 11 62 7 503 673 and 11 62 1 439 859, among others. The included gaskets and hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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:
See More
Product Features:
- 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
- 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
Popular 2000 BMW 323i Catalytic Converters Categories
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)
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:
See More
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
Best-Selling 2000 BMW 323i Catalytic Converter
Upgrade your 323i with our best-selling Catalytic Converter.
MagnaFlow – Direct-Fit California Grade Catalytic Converter with Integrated Exhaust Manifold (Part No.452175)
from
$1463.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 452175. 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 1999-2000 BMW 323i, 1999-2000 BMW Z3, and more, this direct-fit catalytic converter also interchanges with OE parts 11 62 7 503 673 and 11 62 1 439 859, among others. The included gaskets and hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. 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:
See More
Product Features:
- 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
- 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
FAQs for 2000 BMW 323i Catalytic Converters
What are the best-selling Catalytic Converters for 2000 BMW 323is?
Out of 2 Catalytic Converters that fit 2000 BMW 323is, the following parts are the top sellers:
- Exhaust Pipe Flange Gasket (18370012) – $3.99
- Direct-Fit California Grade Catalytic Converter with Integrated Exhaust Manifold (11379074) – $1,463.99
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 $1,463.99 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 $733.99. 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:
- Exhaust Pipe Flange Gasket (18370012) – $3.99
- Direct-Fit California Grade Catalytic Converter with Integrated Exhaust Manifold (11379074) – $1,463.99
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 11/2/25, 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.