Best Car Exhaust Catalytic Converters of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 6, 2025

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Car exhaust catalytic converters are devices that are installed in the exhaust systems of vehicles to reduce the amount of harmful pollutants emitted into the environment. They work by converting toxic gases, such as carbon monoxide and nitrogen oxides, into less harmful substances like carbon dioxide and water vapor. These converters are an important component of modern vehicles, as they help to reduce air pollution and improve air quality. They are required by law in many countries, including the United States, and are available for a wide range of vehicle models and types.

At a Glance: Our Top Picks

Stainless Steel Catalytic Converter Exhaust Y-Pipe for Escalade and Avalanche Cover #TOP 1
Stainless Steel Catalytic Converter Exhaust Y-Pipe for Escalade and Avalanche
ftb score rating icon 9.8
DNA MOTORING Catalytic Converter Y-Pipe Cover #TOP 2
DNA MOTORING Catalytic Converter Y-Pipe
ftb score rating icon 9.7
Dura Lube Catalytic Treatment 16 oz Cover #TOP 3
Dura Lube Catalytic Treatment 16 oz
ftb score rating icon 9.5

Top 10 Car Exhaust Catalytic Converters

#TOP 1

Stainless Steel Catalytic Converter Exhaust Y-Pipe for Escalade and Avalanche

OEM-CONV-001
Stainless Steel Catalytic Converter Exhaust Y-Pipe for Escalade and Avalanche Cover
DNA MOTORING Factory Style Catalytic Converter Exhaust Y-Pipe ReplacementCompatible with 02-05 Escalade Avalanche 1500 4.3 4.8 5.3L, OEM-CONV-001

This catalytic converter exhaust Y-pipe is made of high-quality stainless steel with computerized mandrel-bends for strength and durability. Its durable catalyst material is an OEM-style replacement. It is compatible with Escalade, Avalanche 1500 02-05, Silverado/Sierra 1500 99-05, Silverado/Sierra 2500 99-00, Suburban 1500/Tahoe/Yukon XL 00-06, and fits 4.3 4.8 5.3L engines. Made in China.

What We Like
High-quality stainless steel material
Durable catalyst material
Computerized mandrel-bends for strength and durability
#TOP 2

DNA MOTORING Catalytic Converter Y-Pipe

OEM-CONV-002
DNA MOTORING Catalytic Converter Y-Pipe Cover
DNA MOTORING Factory Style Catalytic Converter Exhaust Y-PipeCompatible with 07-09 Silverado Tahoe Sierra Tahoe 4.8 5.3 6.0L, OEM-CONV-002

The DNA MOTORING Y-Pipe is designed to fit various models, including the 2007-2009 Silverado and Tahoe. Constructed from high-quality materials, it offers enhanced strength and durability, ensuring it can withstand tough conditions. This product is engineered to improve your vehicle's performance by boosting conversion efficiency and overall power. Additionally, it meets OEM standards and is certified by the EPA, making it a reliable option for those needing a replacement. However, it’s important to note that installation instructions are not included, so professional installation is recommended for best results.

What We Like
High-quality stainless steel
Improves vehicle performance
Meets OEM standards
Durable construction
#TOP 3

Dura Lube Catalytic Treatment 16 oz

HL-40240-02
Amber
16 Fl. oz.
Dura Lube Catalytic Treatment 16 oz Cover
Dura Lube Severe Catalytic and Exhaust Treatment | 16 oz., 2-Pack

Dura Lube Treatment is designed to enhance your vehicle's fuel system and overall engine performance. You can easily add it to your vehicle anytime, ensuring that your engine runs smoothly. It's especially recommended to use this treatment before replacing your catalytic converter, saving you from unnecessary expenses. Additionally, it protects your catalytic system from damaging oil, helping to maintain its efficiency. Furthermore, this product reduces harmful phosphorus and zinc levels at the catalyst inlet, contributing to a cleaner running engine.

What We Like
Improves engine performance
Protects catalytic system
Reduces harmful emissions
Cost-effective solution
#TOP 4

DNA Motoring Catalytic Converter for Enclave/Traverse/Acadia

OEM-CONV-044
DNA Motoring Catalytic Converter for Enclave/Traverse/Acadia Cover
DNA Motoring OEM-CONV-044 3Pcs Factory Style Catalytic Converter Exhaust Pipe Compatible with 08-15 Enclave/Traverse/Acadia 3.6L

The DNA Motoring Catalytic Converter is designed as a reliable replacement for your vehicle's exhaust system. Made from high-quality stainless steel, it ensures strength and durability, providing long-lasting performance. The computerized mandrel-bends enhance the converter's structural integrity, making it a robust choice. This product is compatible with several models, allowing for easy installation. Additionally, it features durable catalyst material, which helps in maintaining optimal engine performance and efficiency. By choosing this catalytic converter, you can enjoy a smoother driving experience while adhering to federal emissions standards.

What We Like
Durable stainless steel construction
Easy installation for various models
Enhanced engine performance
Strong structural integrity
#TOP 5

Walker Ultra EPA Catalytic Converter for Subaru

Walker
16689
Walker Ultra EPA Catalytic Converter for Subaru Cover
Walker Ultra EPA 16689 Direct Fit Catalytic Converter with Integrated Exhaust Manifold for Subaru Forester

The Walker Catalytic Converter is designed to fit various Subaru models, including the Forester and Crosstrek. Before buying, you can easily verify compatibility by checking the “Amazon Confirmed Fit” feature, ensuring it matches your vehicle's specifications. This product is EPA compliant for OBDII vehicles from 1996 and newer, helping you stay within local regulations. Its direct-fit design allows for a simple installation process, as it bolts directly onto the engine's cylinder head, making it convenient for users looking for a straightforward replacement solution.

What We Like
Easy installation
EPA compliant
Compatible with many models
Durable construction
#TOP 6

A-Premium Catalytic Converter for Nissan Altima

APCCT203
A-Premium Catalytic Converter for Nissan Altima Cover
A-Premium Front Exhaust Manifold Catalytic Converter W/Gasket Kit - Compatible with Nissan Altima 2007, 2008, 2009, 2010, 2011, 2012, 2013 L4 2.5L - Replace# 674-933, 14002-JA01E - E.P.A. Compliant

The A-Premium Catalytic Converter is designed specifically for Nissan Altima models from 2007 to 2013 with a 2.5L engine. Its compatibility ensures a perfect fit, making installation straightforward for you. With multiple reference numbers, this converter is versatile and meets various requirements. It is crafted from stainless steel, offering durability and resistance to corrosion, which means you can rely on it for long-lasting performance. Additionally, it comes with a gasket and bolts, saving you time and effort during setup. Enjoy peace of mind with this E.P.A. compliant option that adheres to federal emissions standards.

What We Like
Vehicle compatibility
Durable stainless steel
Includes gasket and bolts
E.P.A. compliant
#TOP 7

FUTAIHE Exhaust Manifold Converter for Chevy Equinox and GMC Terrain

FUTAIHE
FT-015-001
FUTAIHE Exhaust Manifold Converter for Chevy Equinox and GMC Terrain Cover
FUTAIHE Exhaust Manifold Catalytic Converter Fit for 2010-2014 Chevy Equinox 2.4L, 2010-2014 GMC Terrain 2.4L, 2012-2015 Captiva Sport 2.4L Direct-Fit (EPA Compliant)

The FUTAIHE Exhaust Manifold Converter is designed for specific Chevy and GMC models, ensuring a perfect fit. Made from durable HD stainless steel, it promotes optimal oxygen flow to your engine, enhancing performance. Its high-quality construction resists rust and provides excellent oxygen storage, which contributes to a longer lifespan. This converter is a direct replacement for your original equipment, making installation straightforward and hassle-free. However, professional installation is recommended to ensure everything is set up correctly. With a one-year warranty, you can purchase with confidence.

What We Like
Durable stainless steel construction
Optimal oxygen flow
Direct fit for easy installation
One-year product warranty
#TOP 8

DNA MOTORING Catalytic Converter for Honda CRV

OEM-CONV-034
DNA MOTORING Catalytic Converter for Honda CRV Cover
DNA MOTORING Factory Style Catalytic Converter Exhaust Pipe Compatible with 97-01 Honda CRV, OEM-CONV-034

The DNA MOTORING Catalytic Converter is specifically designed for the 1997-2001 Honda CRV, ensuring a perfect fit. Constructed from high-quality stainless steel and durable catalyst material, this converter enhances your vehicle’s power while improving overall performance. It meets the standards set by the Original Equipment Manufacturer (OEM), providing peace of mind with its EPA certification. This product is designed for federal emissions models, making it a reliable choice for many drivers, although it's essential to note that it's not legal for sale in certain states. Professional installation is recommended for optimal results.

What We Like
High-quality stainless steel construction
Improves vehicle performance
OEM design meets industry standards
EPA certified for federal models
#TOP 9

AUTOSAVER88 Catalytic Converter for Altima

UVWX6814XY9256
AUTOSAVER88 Catalytic Converter for Altima Cover
AUTOSAVER88 Catalytic Converter Exhaust Manifold w/Gasket Compatible with 2007 2008 2009 2010 2011 2012 2013 Altima 2.5L Stainless Steel Direct-Fit (EPA Compliant)

The AUTOSAVER88 Altima Converter is designed specifically for 2007-2013 Altima models with a 2.5L engine. It features a direct fit design, which means you won’t need to make any modifications during installation. This product is built for efficiency, utilizing internal ceramic substrates that enhance catalytic reactions, ensuring better performance. The heavy-duty T409 stainless steel construction offers excellent resistance to heat and corrosion, so you can expect durability over time. Plus, it’s EPA certified, giving you peace of mind regarding emissions compliance. Professional installation is recommended for the best results.

What We Like
Direct fit installation
High efficiency performance
Durable stainless steel construction
EPA certified compliance
#TOP 10

Auto Shack Catalytic Converter for GMC Sierra

Auto Shack
EMCC60492
Auto Shack Catalytic Converter for GMC Sierra Cover
AutoShack Catalytic Converter Exhaust Pipe Direct Fit Replacement for GMC Sierra 1500 Yukon XL 1500 2009-2013 Chevrolet Silverado 1500 Avalanche 2009-2014 Tahoe Suburban 1500 (EPA Compliant) EMCC60492

The Auto Shack Catalytic Converter is designed for easy installation on your existing exhaust system, making it a hassle-free choice for your vehicle. Constructed from high-quality materials, it ensures durability and meets original specifications, providing you with reliable performance. This converter is EPA compliant, which means it adheres to emission regulations, helping you stay environmentally friendly. However, it’s important to note that professional installation is highly recommended for optimal results. Always check Amazon’s vehicle fitment tool to ensure compatibility with your specific model.

What We Like
Easy installation
Durable materials
EPA compliant
Professional installation recommended
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What does a catalytic converter do in a car exhaust?

A catalytic converter is a unit that fits into the front part of exhaust system of a vehicle, close to the engine, to reduce the emission of gaseous pollutants, such as carbon monoxide (CO), nitrogen oxides (NOx) and hydrocarbons (HCs).

2. Is a catalytic converter necessary in a car exhaust system?

Without catalytic converters, vehicles release hydrocarbons, carbon monoxide, and nitrogen oxide. These gases are the largest source of ground level ozone, which causes smog and is harmful to plant life.

3. Why are catalytic converters being stolen so much?

Catalytic converters contain numerous rare earth metals, such as platinum, palladium, or rhodium, according to the NICB. Those rare earth metals are the key driver in theft, said David Glawe, the president and CEO of the National Insurance Crime Bureau told the PBS NewsHour's Nicole Ellis.

4. Do all exhausts have catalytic converters?

A vehicle will have a catalytic converter for each exhaust pipe—so while most cars will just need one, dual exhaust vehicles will need two. Catalytic converters became the norm after 1975, and most dual exhaust vehicles have V8 engines.

Editor's Notes

During our car exhaust catalytic converter research, we found 24 car exhaust catalytic converter products and shortlisted 10 quality products. We collected and analyzed 15,856 customer reviews through our big data system to write the car exhaust catalytic converters list. We found that most customers choose car exhaust catalytic converters with an average price of $181.41.

The car exhaust catalytic converters are available for purchase. We have researched hundreds of brands and picked the top brands of car exhaust catalytic converters, including DNA MOTORING, DURA LUBE, Walker, A-Premium, FUTAIHE. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.