The 10 Best Automotive Replacement Catalytic Converter Kits to Buy – December 2021 Review

Looking for the best Automotive Replacement Catalytic Converter Kits?

We did 23 hours of research and testing 20 products to create this review. We believe the best Automotive Replacement Catalytic Converter Kits doesn’t have to be the most sophisticated to be exceptional. Our product selection lives up to its promise. Many different criteria were used for this comparison to be more relevant and more precise. Now discover our comparison !

TOP 10

SaleNo. 1
MagnaFlow Universal Catalytic Converter Standard Grade Federal/EPA Compliant 94006 - Stainless Steel 2.5in Inlet/Outlet Diameter, 16in Overall Length, No O2 Sensor - Standard Grade Replacement
  • EPA PRE-OBDII COMPLIANT - This catalytic converter is designed to meet or exceed Federal EPA (Environmental Protection Agency) Pre-OBDII emissions requirements in compliance with legal standards for federally registered vehicles. NOT for use in California or Colorado
  • UPGRADED DESIGN - Using our latest catalytic converter manufacturing technologies, these early vehicle applications benefit from updated flow characteristics and modern construction designs
  • STAINLESS STEEL CONSTRUCTION - The utilization of highly corrosion resistant stainless-steel construction and MagnaFlow’s cutting-edge CNC precision robotic manufacturing techniques ensure consistently perfect fitment, reliable performance and superior longevity
  • 5 YEAR / 50,000-MILE LIMITED WARRANTY - Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and 25,000-mile emissions warranty included with this MagnaFlow catalytic converter
  • UNIVERSAL FIT - MagnaFlow recommends professional installation for the universal configuration of this catalytic converter as cutting, fabrication and/or welding may be required. In addition, we suggest contacting the official MagnaFlow Exhaust Products seller account to confirm there’s no issue selecting your vehicle in Amazon’s system to ensure it is the correct fit
No. 2
Nightcore Manifold 409 Stainless Steel Catalytic Converter Kit Auto Replacement Exhaust Set Front Rear Automotive Replacement Exhaust Manifolds Pipe for 2001-2005 Honda Civic 1.7L L4 SOHC
  • Long Lasting Components:Made of high quality 409 stainless steel, our exhaust manifold ensures a long lasting replacement. Stainless Steel tubular construction has strong anti-corrosive function. It also can protect against warping or cracking. Importantly, it can prevent gas leakage, which can provide safety and durability.
  • Direct Replacement: Vehicles with increased emissions or catalytic failures could be repaired by replacing with our catalytic exhaust header. This exhaust manifold set go through strict quality inspection to ensure that they meet the standards. The kit can replace the vehicle's factory installed exhaust manifold without too much trouble.
  • High Exhaust Flowing Tubing:  Featuring with small curvature and smooth inside, the exhaust manifold helps to improve the exhaust efficiency. The exhaust system won’t make strange noises when working but soft sound, which provides you a pleasant driving experience.
  • A Good Helper of Vehicle: Our exhaust header can provide the best flow characteristics for the engine at high speed. At the same time, it can increase the air flow and increases horsepower and torque. The exhaust manifold and other major components are connected to minimize leakage from the exhaust system.
  • Easy Installation:It is easy and time-saving to install this exhaust manifold, you just need to screw the parts together tightly and install it on your car. Every part of it is very precise and can be installed directly. As long as your car fits the exhaust manifold, you can fit it easily. This will undoubtedly save you a lot of time.
No. 3
Walker Exhaust Standard EPA 15038 Universal Catalytic Converter
  • EPA COMPLIANT -- For use on pre-OBDII vehicles, 1995 and older. Not legal for sale or use in CA. Legal in NY and ME on all pre-OBD vehicles only. Consult your state's aftermarket converter regulations for details.
  • NO BREAK IN REQUIRED -- Ready to operate with application-specific converter shell design and mat compression, no converter break in required after installation
  • DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter
No. 4
DNA Motoring OEM-CONV-041 Factory Style Catalytic Converter Exhaust Header Compatible with 07-08 Caliber / 07-17 Compass Patriot
  • OEM Style Replacement Catalytic Converter Header, Precision-engineered For Long-lasting Performance
  • Made of High Quality Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
  • [*Fitment]: Compatible With 07-08 Caliber / 07-17 Compass & Patriot; Fits Models With 2.4l 4wd
  • [*Reference Part Number]: 20417, 59222, 16618
  • [*Note]: For use with Federal Emissions Models; NOT Legal for sale or Use in California, New York, Or Maine Emissions Models
No. 5
Walker 35574 Air Tube Kit
  • Offered in a variety of styles and sizes for your installation needs
  • Constructed from durable and robust material for long life
  • Universal fit for installation flexibility
  • Designed to work seamlessly with OE and Walker aftermarket replacement parts
  • New Walker accessories help to ensure effective exhaust repairs
No. 6
DNA Motoring OEM-CONV-001 Factory Style Catalytic Converter Exhaust Y-Pipe Replacement Compatible With 02-05 Escalade Avalanche 1500 4.3 4.8 5.3L
  • Oem Style Replacement Catalytic Converter Exhaust Y-Pipe, Precision-Engineered For Long-Lasting Performance
  • Made Of High Quality Stainless Steel With Computerized Mandrel-Bends For Strength And Durability
  • Fitment: Compatible With Escalade, Avalanche 1500 02-05; Silverado/Sierra 1500 99-05; Silverado/Sierra 2500 99-00; Suburban 1500 / Tahoe / Yukon Xl 00-06; Fits 4.3 4.8 5.3L Engines
  • Country Of Origin : China
No. 7
Cat Security - Catalytic Converter Protection shield, Fits - Toyota Prius 04-09 Level 2 Complete kit
  • Ultimate protection with added security features
  • Made from aluminum which is lighter than all other converter security types With added stainless steel protection
  • Strategically placed heat extraction holes allow for proper ventilation of the exhaust area.
  • “CCM” logo is strategically placed for visual inspections while performing a SMOG check
  • Utilizes the factory mounting points and adds in security hardware (Included Security hardware prevents rapid removal and requires special tooling to be removed)
No. 8
MAYASAF 2" Inlet/Outlet Universal Catalytic Converter, with O2 Port & Heat Shield (EPA Compliant)
  • 【High Quality & Flow】Our universal fit catalytic converter is designed to meet even exceed OE quality and performance standards. Made from HD-Stainless steel, high flow design to provide more oxygen for an increase in power and performance, fully tested under the extreme conditions for heat resistance and service life.
  • 【Easy installing】Perfectly matched with the original vehicle, and can be installed easyly to existing exhaust system, cutting and welding may required, professional installation is highly recommended.
  • 【EPA CERTIFIED】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But not legal for use on vehicles required to meet California emission standards. NOT SHIP TO CA AND NY.
  • 【Vehicle Fitment】Universal for vehicles with 2 inches outer diameter exhaust pipe. Please check product description page below to make sure this item fits your vehicle first.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping by UPS/USPS/Amazon shipping, kindly contact us first if you have any problems, let's make it right!
No. 10
Mr Repair Parts Catalytic Converter Cat Protection Protector Shield Aluminum for 2004 2005 2006 2007 2008 2009 Toyota Prius
  • Made in USA
  • Direct Fit For 2004-2009 Toyota Prius
  • Made from 100% High Quality Aluminum For Lighter Weight
  • Heat extraction holes allow for proper ventilation
  • Professional Installation Recommended / Hardware Kit Included

Intro

Find out where you can get the best Automotive Replacement Catalytic Converter Kits! Making your choice among different Automotive Replacement Catalytic Converter Kits on the market is not always easy. It can also turn into a daunting task because of the many websites offering the same type of product. On this page, we will give you a comparison to get the best value for your money. This complete ranking provides you with a comprehensive view and allows you to pick the best Automotive Replacement Catalytic Converter Kits. You will find a broad selection of models, brands, and prices. Whether you want to save money or find out what is the best Automotive Replacement Catalytic Converter Kits for you, our comparison will help you make the right choice. To keep things practical and easy to understand, we created a Top 10 of the best Automotive Replacement Catalytic Converter Kits. You won’t have to choose your products at random anymore.. On your marks! Compare! Pick your Automotive Replacement Catalytic Converter Kits!

Our Picks

SaleNo. 1
MagnaFlow Universal Catalytic Converter Standard Grade Federal/EPA Compliant 94006 - Stainless Steel 2.5in Inlet/Outlet Diameter, 16in Overall Length, No O2 Sensor - Standard Grade Replacement
  • EPA PRE-OBDII COMPLIANT - This catalytic converter is designed to meet or exceed Federal EPA (Environmental Protection Agency) Pre-OBDII emissions requirements in compliance with legal standards for federally registered vehicles. NOT for use in California or Colorado
  • UPGRADED DESIGN - Using our latest catalytic converter manufacturing technologies, these early vehicle applications benefit from updated flow characteristics and modern construction designs
  • STAINLESS STEEL CONSTRUCTION - The utilization of highly corrosion resistant stainless-steel construction and MagnaFlow’s cutting-edge CNC precision robotic manufacturing techniques ensure consistently perfect fitment, reliable performance and superior longevity
  • 5 YEAR / 50,000-MILE LIMITED WARRANTY - Worry-free ownership is made possible thanks to the 5 year/50,000-mile construction and 25,000-mile emissions warranty included with this MagnaFlow catalytic converter
  • UNIVERSAL FIT - MagnaFlow recommends professional installation for the universal configuration of this catalytic converter as cutting, fabrication and/or welding may be required. In addition, we suggest contacting the official MagnaFlow Exhaust Products seller account to confirm there’s no issue selecting your vehicle in Amazon’s system to ensure it is the correct fit
No. 2
Nightcore Manifold 409 Stainless Steel Catalytic Converter Kit Auto Replacement Exhaust Set Front Rear Automotive Replacement Exhaust Manifolds Pipe for 2001-2005 Honda Civic 1.7L L4 SOHC
  • Long Lasting Components:Made of high quality 409 stainless steel, our exhaust manifold ensures a long lasting replacement. Stainless Steel tubular construction has strong anti-corrosive function. It also can protect against warping or cracking. Importantly, it can prevent gas leakage, which can provide safety and durability.
  • Direct Replacement: Vehicles with increased emissions or catalytic failures could be repaired by replacing with our catalytic exhaust header. This exhaust manifold set go through strict quality inspection to ensure that they meet the standards. The kit can replace the vehicle's factory installed exhaust manifold without too much trouble.
  • High Exhaust Flowing Tubing:  Featuring with small curvature and smooth inside, the exhaust manifold helps to improve the exhaust efficiency. The exhaust system won’t make strange noises when working but soft sound, which provides you a pleasant driving experience.
  • A Good Helper of Vehicle: Our exhaust header can provide the best flow characteristics for the engine at high speed. At the same time, it can increase the air flow and increases horsepower and torque. The exhaust manifold and other major components are connected to minimize leakage from the exhaust system.
  • Easy Installation:It is easy and time-saving to install this exhaust manifold, you just need to screw the parts together tightly and install it on your car. Every part of it is very precise and can be installed directly. As long as your car fits the exhaust manifold, you can fit it easily. This will undoubtedly save you a lot of time.
No. 3
Walker Exhaust Standard EPA 15038 Universal Catalytic Converter
  • EPA COMPLIANT -- For use on pre-OBDII vehicles, 1995 and older. Not legal for sale or use in CA. Legal in NY and ME on all pre-OBD vehicles only. Consult your state's aftermarket converter regulations for details.
  • NO BREAK IN REQUIRED -- Ready to operate with application-specific converter shell design and mat compression, no converter break in required after installation
  • DURABLE -- Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION -- Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • OE-STYLE DESIGN -- Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter

Why you should trust us?

This guide is the result of more than 10 years of experience in researching, testing, and writing about various subject. Our team members are experts in their fields. We spent 23 hours reading all the articles we could find online and all the customer reviews on various retail websites such as Amazon, Ebay, Alibaba or Flipkart. We also found many websites that provided valuable resources such as purchasing guides and detailed information on Automotive Replacement Catalytic Converter Kits. To help you make the best choice among the hundreds of products available, we decided to offer you a comparison in order to find the best value for your money. We searched different fields to find the best Automotive Replacement Catalytic Converter Kits. We also looked at the best alternatives for reasonably priced and easy to use products. After we determined our main parameters, we conducted our research and tests.These parameters separate a great product from an average one:

  • Price
  • Ease of use
  • Customer reviews
  • Quality
  • Durability

Conclusion

We hope this ranking was helpful to you in choosing the Automotive Replacement Catalytic Converter Kits that best suits you. We made it thoroughly and we will update it regularly, so that you get a real-time comparison. Our goal is to allow you to compare models and prices, to get an overview of what the market has to offer. We are here to make it easier for you and to make informed decisions. If our ranking gave you a clearer view on the different products available, feel free to let us know in the comments section. We will happily read them.

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Last update on 2021-11-10 at 08:43 / Affiliate links / Images from Amazon Product Advertising API