10 Best Aftermarket Catalytic Converter in 2022 – [Top Picks]

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You’ve come to the right place if you’re looking for the best aftermarket catalytic converter. We pored over numerous online databases, forums, and user reviews to find the best ones on the market.

These are A+ products and have received high ratings from users, so you can be confident they’re worth your time and money. Let’s take a look at our top picks!

EDITOR'S CHOICE
MAYASAF【2 PACK】2" Inlet/Outlet Universal Catalytic Converter, with O2 Port & Heat Shield (EPA Compliant)
  • 【Vehicle Fitment】Standard 2 inches inside diameter inlet /outlet, 13 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!

Top 10 Aftermarket Catalytic Converter – [Highly Rated]


10 Best Aftermarket Catalytic Converter – [Editor’s Recommendations]

OUR #1 PICK
MAYASAF【2 PACK】2" Inlet/Outlet Universal Catalytic Converter, with O2 Port & Heat Shield (EPA Compliant)
  • 【Vehicle Fitment】Standard 2 inches inside diameter inlet /outlet, 13 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!
25% OffOUR #2 PICK
AUTOSAVER88 ATCC0016 2" Inlet/Outlet Universal Catalytic Converter with O2 Port and Heat Shield (EPA Compliant)
  • ATTENTION: This item doesn't ship to California and Colorado, please confirm before purchase.
  • VEHICLE FITMENT: Universal fit for vehicles with 2-inch outer diameter exhaust pipe while cutting and welding may be required so professional installation is highly recommended.
  • HIGH FLOW & EFFICIENCY: Internal honeycomb ceramic substrates have porous structure to increase the reaction area, and ensure sufficient catalysts (Pt, Rh, Pd) on the coating surface for a higher conversion rate.
  • DURABILITY: Adopts heavy-duty T409 stainless steel shell that highly resists heat, rust, and corrosion for longer service life, no worry about bending or melting even in extreme conditions.
  • WORRY-FREE PURCHASE: EPA Federal Standard Certificated, all AUTOSAVER88's catalytic converters are stamped with an exclusive EPA number on the shell. AUTOSAVER88 offers a 5-year or 50,000 miles limited warranty, for any manufacturer defect.
12% OffOUR #3 PICK
MAYASAF 2" Inlet/Outlet Universal Catalytic Converter, with O2 Port & Heat Shield (EPA Compliant)
  • 【Vehicle Fitment】Standard 2 inches inside diameter inlet /outlet, 13 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!
11% OffOUR #4 PICK
MAYASAF 2.5" Inlet/Outlet Universal Catalytic Converter, with O2 Port (EPA Compliant)
  • 【Attention】 Not ship to states such as California, Colorado, Maine, and New York, etc. due to state emissions regulations. Please consult your state’s aftermarket converter regulations before purchase.
  • 【Vehicle Fitment】Standard 2.5 inches inside diameter inlet /outlet, 11 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【Easy Installation】Perfectly matched with the original vehicle, installed easily to existing exhaust system. Cutting and welding maybe required, professional installation is highly recommended.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Worry-free Aftermarket】EPA CERTIFIED, backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Kindly let us know if you have any problems, let's make it right!
OUR #5 PICK
MAYASAF Catalytic Converter w/Gasket Fit for HONDA Accord 2003 2004 2005 2006 2007 2.4L L4 (EPA Compliant)
  • 【Vehicle Fitment】Fit for 2003 2004 2005 2006 2007 for HONDA Accord 2.4L L4. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Direct Replacement】Matched with the original vehicle, installed easily to existing exhaust system without doing extra modification, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!
OUR #6 PICK
MAYASAF【2 pack】2.25" Inlet/Outlet Universal Catalytic Converter, with O2 Port & Heat Shield (EPA Compliant), 2 pack
  • 【Vehicle Fitment】Standard 2.25 inches inside diameter inlet /outlet, 13 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!
OUR #7 PICK
MAYASAF【2 pack】3" Inlet/Outlet Universal Catalytic Converter, High Flow Exhaust Pipe, w/o O2 Port (EPA Compliant), 2 pack
  • 【Attention】 Not ship to states such as California, Colorado, Maine, and New York, etc. due to state emissions regulations. Please consult your state’s aftermarket converter regulations before purchase.
  • 【Vehicle Fitment】Standard 3 inches inside diameter inlet /outlet, 11 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Worry-free Aftermarket】EPA CERTIFIED, backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Kindly let us know if you have any problems, let's make it right!
OUR #8 PICK
AUTOSAVER88 2.5" inlet/outlet Universal Catalytic Converter Oval Body (EPA Compliant)
  • ATTENTION: This item doesn't ship to California and Colorado, please confirm before purchase.
  • VEHICLE FITMENT: Universal fit for vehicles with 2.5-inch outer diameter exhaust pipe while cutting and welding may be required so professional installation is highly recommended.
  • HIGH FLOW & EFFICIENCY: Internal honeycomb ceramic substrates have porous structure to increase the reaction area, and ensure sufficient catalysts (Pt, Rh, Pd) on the coating surface for a higher conversion rate.
  • DURABILITY: Adopts heavy-duty T409 stainless steel shell that highly resists heat, rust, and corrosion for longer service life, no worry about bending or melting even in extreme conditions.
  • WORRY-FREE PURCHASE: EPA Federal Standard Certificated, all AUTOSAVER88's catalytic converters are stamped with an exclusive EPA number on the shell. AUTOSAVER88 offers a 5-year or 50,000 miles limited warranty, for any manufacturer defect.
OUR #9 PICK
MAYASAF【2 pack】2" Inlet/Outlet Universal Catalytic Converter, w/o O2 Port (EPA Compliant), 2 pack
  • 【Attention】 Not ship to states such as California, Colorado, Maine, and New York, etc. due to state emissions regulations. Please consult your state’s aftermarket converter regulations before purchase.
  • 【Vehicle Fitment】Universal for vehicles with 2 inches outer diameter exhaust pipe. 11 inches overall length, 7 inches body length. Please make sure this item fits your vehicle first.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Worry-free Aftermarket】EPA CERTIFIED, backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. Kindly let us know if you have any problems, let's make it right!
OUR #10 PICK
MAYASAF Catalytic Converter Fit for Toyota Prius 1.5L L4 2004 05 06 07 08 09, High Flow Converter (EPA Compliant)
  • 【Vehicle Fitment】for Toyota Prius 1.5L L4 2004 2005 2006 2007 2008 2009.. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Direct Replacement】Matched with the original vehicle, installed easily to existing exhaust system without doing extra modification, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!

How to Choose the Best Aftermarket Catalytic Converter?

When it comes to purchasing aftermarket catalytic converter, there are a lot of factors to consider. With so many choices on the market, it can be tough to decide what to buy. However, by keeping the following factors in mind, you can make your next purchase with confidence.

1. Price

One of the most important factors to consider when purchasing aftermarket catalytic converter is the price. Not only should you consider the cost of the product, but also the cost of shipping and handling. It is important to compare prices between different retailers so that you can find the best deal.

2. Features

When looking at aftermarket catalytic converter, it is important to read the description carefully. This will give you a good idea of what the product is and how it works. It is also important to consider the features of the product. Some products have more features than others, and these features may be important to you.

3. Reviews

It is always helpful to read reviews before you buy aftermarket catalytic converter. This will give you an idea of how other people have used the product and what their thoughts are. Additionally, reviews can help you make a more informed decision about the aftermarket catalytic converter.

4. Comparisons

If you are looking for a specific aftermarket catalytic converter, it is helpful to look at similar products to see if they are cheaper or better quality. This can help you make a decision without having to spend a lot of time researching the matter. It is also helpful to talk to friends and family members who may have found a good deal on a certain product.

5. Brands

One of the most important factors to consider when purchasing aftermarket catalytic converter is the manufacturer. Make sure you are buying from a reputable brand that you can trust. There are a lot of companies that make low quality products. They might not last as long as you would like, or they might not function as they are supposed to.

6. Warranty

When purchasing aftermarket catalytic converter, it is always important to consider the warranty. This will give you peace of mind in case something goes wrong with the product. If the product has a warranty, make sure to read the terms and conditions carefully.


Final Words

We hope our research and the hard work we did finding the best aftermarket catalytic converter helped you. If you want to know more, feel free to contact us, and we’ll respond back when possible.

EDITOR'S CHOICE
MAYASAF【2 PACK】2" Inlet/Outlet Universal Catalytic Converter, with O2 Port & Heat Shield (EPA Compliant)
  • 【Vehicle Fitment】Standard 2 inches inside diameter inlet /outlet, 13 inches overall length. Universal fit for vehicles with similar size outer diameter exhaust pipe. Please make sure this item fits your vehicle.
  • 【DURABLE】Made from Features HD-Stainless steel, high flow design to provide more oxygen to your engine, fully tested under the extreme conditions for service life.
  • 【Easy Installation】Matched with the original vehicle, installed easily to existing exhaust system. May require cutting and/or welding, professional installation is highly recommended.
  • 【EPA CERTIFIED but Non-compliant with CARB】Backed in 2 years or 50,000 miles limited warranty, for any manufacturer defect. But the listed product has not been registered with CARB nor received an EO number. It is prohibited from sale in states which have adopted California's vehicle emission standards, such as California. Consult your state’s aftermarket converter regulations.
  • 【Worry-free Aftermarket】Well-packaged and Free shipping, kindly contact us first if you have any problems, let's make it right!