Best Exhaust Car Catalytic Converters of 2025

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Exhaust car catalytic converters are essential components that help to reduce harmful emissions from vehicles. They are installed in the exhaust system and work by converting toxic gases such as carbon monoxide, nitrogen oxides, and hydrocarbons into less harmful substances such as carbon dioxide, nitrogen, and water vapour. This process helps to reduce air pollution and improve the quality of air we breathe. Catalytic converters are available for a wide range of vehicles and are a recommended addition to any car.
At a Glance: Our Top Picks
Top 10 Exhaust Car Catalytic Converters
Exhaust Gas Temperature Sensor for BMW Models
The Frankberg Exhaust Temperature Sensor is designed for various BMW models, including the 1 Series, 3 Series, and 5 Series, specifically for I4 2.0L and I6 3.0L engines. Its installation in front of the catalytic converter allows for accurate monitoring of exhaust gas temperatures, helping to optimise your vehicle's performance. This sensor is compatible with numerous models produced between 2004 and 2017, ensuring versatility for BMW owners. With a straightforward 2-pin connection, installation is user-friendly, providing convenience for those looking to maintain their car's efficiency.
JT Catalytic Converter for Toyota Corolla/Matrix
The JT Catalytic Converter is specifically designed for the 2003-2008 Toyota Corolla and Matrix with a 1.8L engine. It meets EPA OBDII emission requirements, ensuring your vehicle complies with environmental standards. With added precious metal catalyst, it enhances efficiency, helping you pass emission tests with ease. The use of high-quality stainless steel and an OEM-grade honeycomb ceramic substrate guarantees a longer service life, meaning you can enjoy reliable performance for years to come. Plus, its direct-fit design ensures straightforward installation, saving you time and hassle.
Stainless Steel Catalytic Converter for Fiesta
The Headerbs Fiesta Catalytic Converter is an ideal replacement for your 1.0 Ecoboost MK7 and MK7.5 models from 2008 to 2016. Its high-flow design maximises engine output, ensuring you get the best performance from your vehicle. Made from high-strength stainless steel, it resists rust and wear, providing long-lasting durability. This converter also promotes smooth exhaust gas flow, enhancing overall engine performance and power output. Installing this unit is a hassle-free process, fitting perfectly without modifications for your convenience.
Sealey VSE953 Catalytic Converter Test Kit
The Sealey VSE953 Test Kit is designed to help you assess the working condition of your vehicle's catalytic converter and silencer by measuring back pressure. You can easily connect it into the exhaust system using the included oxygen sensor dummy adaptors. The gauge features a colour-coded scale, making diagnosis straightforward. It also measures both pressure and vacuum, allowing you to test low pressure fuel systems or engine vacuum, providing versatility for your vehicle maintenance needs.
Gorgeri Decat Exhaust Mid-Pipe for KTM
The Gorgeri Decat Mid-Pipe is designed to enhance your KTM 125, 250, 390 Duke, and RC390 models from 2017 onwards. By replacing the primary and secondary catalytic converters, this performance mid-pipe allows for a free-flowing exhaust, improving engine efficiency. Made from durable 304 stainless steel, it resists high temperatures and is built to last. Additionally, its professional modification reduces heat and increases airflow, providing you with a significant weight saving of over 3 kg, resulting in a boost of 5 to 6 horsepower for an exhilarating ride.
Dorman 673-615 Exhaust Manifold with Catalytic Converter
The Dorman Exhaust Manifold is designed with stainless tubular construction, ensuring it is resistant to warping and cracking. This feature enhances durability, providing you with peace of mind over its longevity. Additionally, the manifold is leak-resistant, which means you can expect long-lasting performance without the hassle of frequent replacements. A rigorous quality inspection guarantees that this part meets product standards, ensuring reliability in your vehicle's performance. With the original equipment number BT4Z5G232C, you can trust its compatibility with select Ford and Lincoln models.
PARTS-DIYER Catalytic Converter for Honda Accord
The PARTS-DIYER Catalytic Converter is designed for 2003 to 2007 Honda Accord models, ensuring a perfect fit for your vehicle. It effectively converts harmful exhaust gases, such as CO, HC, and NOx, into harmless substances, promoting a cleaner environment. You can rely on its compatibility with various part numbers, making it easy to replace. Additionally, you are advised to check your car model using the Amazon Fitment Filter, ensuring that you select the correct part before purchasing.
JT Catalytic Converter for Chevrolet Models
The JT Catalytic Converter is designed to meet EPA OBDII emission requirements, ensuring your vehicle complies with strict emission standards. This means you can drive knowing you're protecting the environment. It features more precious metal catalyst, enhancing efficiency for passing emission tests. The use of high-quality stainless steel and ceramic substrate offers a longer lifespan, providing you with reliable performance. Additionally, its direct fit design makes installation straightforward, allowing you to easily replace your old converter with minimal hassle.
90 Degree CEL Check Engine Light Bungs O2 Sensor
The SURIEEN O2 Sensor Bungs are specifically designed for non-road vehicles, ideal for racing or modified exhaust testing. With a perfect 90-degree bend, you can easily add an O2 sensor wherever needed, which is particularly useful for tight spaces. The built-in M18X1.5 catalytic converter helps eliminate that frustrating check engine light, making it a practical choice for diagnostics. Enjoy quick and easy installation without any modifications, so you can get back on track swiftly.
Dorman 674-853 Exhaust Manifold with Catalytic Converter
The Dorman Exhaust Manifold offers a direct replacement for your vehicle's factory-installed exhaust system. Its robust cast iron or stainless tubular construction ensures protection against warping and cracking, providing you with peace of mind. You can also enjoy long-lasting performance thanks to its leak-resistant design. Furthermore, it includes a heat shield to safeguard hoses, wiring, and other critical engine components, enhancing the overall durability and functionality of your vehicle.
During our exhaust car catalytic converter research, we found 306 exhaust car catalytic converter products and shortlisted 10 quality products. We collected and analyzed 3,688 customer reviews through our big data system to write the exhaust car catalytic converters list. We found that most customers choose exhaust car catalytic converters with an average price of £71.56.
The exhaust car catalytic converters are available for purchase. We have researched hundreds of brands and picked the top brands of exhaust car catalytic converters, including Frankberg, JT, Headerbs, Sealey, Gorgeri. The seller of top 1 product has received honest feedback from 28,148 consumers with an average rating of 4.2.

Joseph is a seasoned writer who's also passionate about automotive. His passion for automotive care and maintenance fuels his drive for more knowledge in the field. He currently resides in Middlesbrough, where he finds time to write informative contents on automotive. His automotive related articles are quite popular in journals around the world. Joseph continues to use his wealth of experience in the industry to create helpful guides on automotive.