Best Aftermarket Catalytic Converter of 2021

10 Best Aftermarket Catalytic Converters (Reviews & Buying Guide)

Durable, Efficient & Best Value

Catalytic converters will cost you a huge amount of money if you’re buying a brand-new OEM one. New OEM catalytic converters cost above $1000, and that’s why wise car owners look for alternative options when they need to replace their catalytic converters.

If you want to spend your hard-earned money wisely, get the best aftermarket catalytic converter from here.

What is a Catalytic Converter?

A catalytic converter is a component of the automotive exhaust system. It is generally mounted to the internal combustion engine. They’re also found in generators, big water pumps, construction equipment and many other automobiles.

Not sure if it is found in airplanes or ships.

What is the function of a catalytic converter?

The main function of a catalytic converter is to reduce the production of hydrocarbons and carbon monoxide. They are produced by burning of fossil fuels and catalytic converters reduce the production by a great extent.

A catalytic converter is expected to last till the end of your car. However, some big issues in the internal combustion system can damage the converter. Road accidents can also damage your catalytic converter as it is placed outside of the car. That’s why aftermarket catalytic converters are really a good choice if you love speeding.

Should I buy an aftermarket catalytic converter?

An aftermarket converter costing but $200 (sometimes as low as $60) can prevent quite 80% on the worth of a replacement one. Its main benefit is money though there are some drawbacks that you simply should remember.

You can consider these listed top 10 Aftermarket Catalytic Converters before buying a replacement one. Confirm that it’s compatible together with your car. You’re probably brooding about the way to check it. Well, click on the check price button, and you will get the list.

1. MagnaFlow 99356HM Universal Catalytic Converter (Non-CARB Compliant)

MagnaFlow 99356HM Universal Catalytic Converter (Non-CARB Compliant)
  • Fits: All vehicles
  • Material: chrome steel

Key Features

MagnaFlow’s universal converter is meant from chrome steel for durability and strength. The somatotype may be a clamshell with a 2.5″ outlet and a 2.5″ inlet. Its oxygen sensor location is that the mid bed, and therefore the substrate material is formed from ceramic for a smooth flow.

It’s a universal converter, so you’ll need additional modifications to put in it. The MagnaFlow converter is Federal E.P.A. compliant, but it isn’t CARB approved.

Why Use the MagnaFlow Converter?

The MagnaFlow universal converter is meant to stay your engine check light off. It used C.N.C. robotic manufacturing for precision and sturdiness of the unit. The converter exceeds E.P.A. requirements, and it’s made consistent with O.E.M. standards.

MagnaFlow’s universal converter is meant to enhance your vehicle’s overall efficiency by increasing horsepower, decreasing fuel consumption. There is a smooth flow of oxygen, so there won’t be any backpressure.

It’s best to see your spark plugs, engine, and components in your vehicle before changing the converter if your car shows emissions codes. It’s known to be easy to install; however, you’ll need additional assistance because it does require cutting and welding.

The MagnaFlow converter is formed with premium materials, and it’s a cheap component. It’s a 50,000-mile construction warranty also as a 25,000 emissions warranty.

Compatibility

Apart from having a universal fit design, this converter is compatible with both gas and diesel engines and is one among the only a few converters that employment for diesel engines.

Although not CARB compliant, this piece is compliant with the federal emissions requirements, making it usable throughout the U.S. states except California.

Stainless steel is employed because the main material to create the converter. It’s seams welded on the brink of the converter’s body to make a sturdy structure which will withstand the bumps and vibrations because the car moves.

However, thanks to its universal fitting design with no flanges, it requires welding and cutting during the installation process.

Reasons to Buy

Reasons to Avoid

2. Eastern 70318 Catalytic Converter (Non-CARB Compliant)

Eastern 70318 Catalytic Converter (Non-CARB Compliant)
  • Fits: All vehicles
  • Material: chrome steel

Key Features

This 70318 from Eastern Industries has affordability because of the main advantage on its side. With that, you get a sturdy stainless-steel-built converter that features a non-flanged inlet and outlet.

With such ends, it requires cutting and welding during installation. Still, the benefit is that you simply can do that in any vehicle since it’s a universal fit. However, the prevailing exhaust must have a 2.5-inch pipe so that the two can slot in perfectly.

Another advantage of this affordable piece is that it’s non-directional, which suggests we will not install it with either pipe end being the inlet or outlet.

On the within, a complicated and proprietary NANO technology chemistry is employed for a max conversion, leading to reduced harmful emissions. However, no oxygen sensor port is included. The unit isn’t CARB-compliant, which suggests we will not use it in California.

Reasons to Buy

Reasons to Avoid

3. Walker 16370 Direct Fit Catalytic Converter

  • Fits: O.B.D.I.I. vehicles (1996 and newer)
  • Material: chrome steel, Aluminum

Key Features

Walker is one of the simplest converter brands within the market. Its 16370 model may be a direct fit converter that’s specifically designed to be used in OBD2 vehicles, which mostly include those manufactured in 1996 or later.

The unit features thick O.E. style flanges that fit directly in existing exhaust systems and combined with thick hangers and brackets. They provide enhanced strength to the whole structure for durability purposes.

It is especially so, considering that most body of the converter is formed using chrome steel and Aluminum, which are quite sturdy. A built-in protective covering protects the encompassing areas from heat damage while also enhancing the unit’s durability factor.

Other features include a high-tech wash-coat plus highly precious metals inside for premium and effective efficiency during the conversion process.

Reasons to Buy

Reasons to Avoid

4. AUTOSAVER88 ATCC0017 Universal Catalytic Converter with O2 Port and Heat Shield

AUTOSAVER88 Universal Catalytic Converter with O2 Port and Heat Shield
  • Fits: 1996 and newer vehicles
  • Material: chrome steel

Key Features

AutoSaver manufactures durable catalytic converters that have long service lives. The universal converter has high emissions control with stable efficiency and reliable quality.

AutoSaver’s converter avoids M.I.L. (malfunction indicator lamp) issues that are common with lower grade components. The honeycomb design reduces the consequences of harmful emissions without minimizing the flow.

The increased flow improves your vehicle’s efficiency by increasing the horsepower and reduces fuel consumption. It protects your engine from overheating, and it eliminates foul exhaust smells. It isn’t of CARB standards, but it’s an O.E.M. component, which suggests it’ll fit most applications.

The external shell of the AutoSaver converter is formed with the durable stainless steel material, and therefore the internal substrate is formed from ceramic. The body may be a shape with an inlet diameter of two .5″ and an outlet diameter of two .5″.

The length of the body is 13″ and is fitted to vehicles with a 2.25″ O.D. pipe. It can fit applications with an engine of 5.9L. The AutoSaver universal converter is stamped with a licensed Federal E.P.A. stamp, making it O.B.D.I.I. compliant.

Reasons to Buy

Reasons to Avoid

5. FlowMaster 2900230 290 Series 3" Inlet/Outlet Oval Universal Catalytic Converter

FlowMaster 2900230 290 Series Universal Catalytic Converter
  • Fits: most. Check on Amazon before buying.
  • Material: chrome steel

Key Features

The FlowMaster Universal fit converter is meant to satisfy, and smooth exceed E.P.A. requirements & is suitable for a good sort of applications. The high-quality converter is manufactured within the U.S.A. using high-quality materials to make sure an extended service life.

All the valuable materials and substrate combinations are engineered to a T to eliminate M.I.L. codes. The FlowMaster converter may be a universal component, which suggests you’ll need knowledgeable to assist you with the installation. It’s going to need additional modifications like welding and cutting.

The FlowMaster 2900230 290 Series 3″ Inlet/Outlet Universal converter improves your car’s overall efficiency and prevents exhaust fouling. It also protects the opposite components in your vehicle from harmful pollutants. Unfortunately, it isn’t CARB certified, but it does have a politician E.P.A. stamp, which is standard altogether 49 States.

The FlowMaster is formed with robust stainless-steel construction with internal substrates made with ceramics. It is a three-way style converter for max oxygen flow. It’s an oval-shaped body.

It has a slip-fit inlet and outlet connection type with diameters of 3″. The FlowMaster converter is compatible with cars with an engine capacity of 5.9L and a maximum weight of 6000lb.

Reasons to Buy

Reasons to Avoid

6. Evan-Fischer REPG960301 Silver Powder-Coated Catalytic Converter

Evan-Fischer REPG960301 Silver Powder-Coated Catalytic Converter
  • Fits: 1999-2005 Chevrolet Silverado 1500, GMC Sierra 1500, 2000-2006 Chevrolet Tahoe, Suburban 1500, 2000-2006 GMC Yukon, GMC Yukon XL 1500, and lots of more
  • Material: Aluminized Steel Tube

Key Features

Evan Fischer’s REPG960301 is that the costliest converter during this review. Still, it’s a high-quality direct fit unit filled with dual inlets that direct the exhaust to 2 separate honeycombs. Then they converge the clean exhaust to release it through one outlet.

The direct feature means the Evan-Fischer converter is straightforward to put in. Your car won’t need any additional modifications for you to put in the converter.

With this design, the converter also features four oxygen sensor ports (two for every honeycomb). The result’s a highly efficient Y-shaped pipe assembly that increases the exhaust flow and area for catalytic conversion.

Other features are the inclusion of gaskets, nuts, and bolts as installation hardware and an E.P.A. approved catalyst that’s accompanied with a 50,000 mile or 5-year warranty.

On the downside, this component is merely legal in 47 U.S. states and can’t be utilized in California, Maine, and N.Y.

The direct-fit component is formed for long-lasting durability and protection. It is easy to put in with no modifications needed, like cutting or welding. The Evan-Fischer converter is manufactured consistently with industry standards for reliability.

EveanFischer’s direct-fit converter improves the efficiency of your vehicle and eliminates the emissions code. The converter increases horsepower and minimizes engine heat. The four oxygen sensor ports increase a maximum flow, which minimizes backpressure and adds protection for your engine.

The converter fits well into most vehicles because it is an O.E.M. component.

Reasons to Buy

Reasons to Avoid

7. Pacesetter 324272 Direct Fit Aftermarket Catalytic Converter

Pacesetter 324272 Direct Fit Aftermarket Catalytic Converter
  • Fits: All vehicles
  • Material: chrome steel

Key Features

Pacesetter catalytic converters meet all E.P.A. and CARB standards, which suggests you will not need to worry about your ride not being street-legal! The corporate has quite four decades of experience developing high-quality aftermarket products, including efficiency headers, exhaust systems, and cat converters. Pacesetter continues to develop new products for brand spanking new vehicle applications. And every one of their products is proudly manufactured within the U.S.A.

This very effective, perforated catalyst will significantly improve the work of your vehicle’s exhaust. Delivers faster flow and remains smog legal, meets E.P.A. and C.A.R.B. regulations. Works with fewer limitations and brings superior scavenging.

Durability and a simple installation – perfect replacement for your stock equipment. Made up of 16-gauge chrome steel with 3/8″ thick CNC-machined flanges. EPA-approved for 49-state smog-legal vehicle applications and made within the U.S.A.

Reasons to Buy

Reasons to Avoid

8. AUTOSAVER88 ATCC0007 2.5" Inlet/Outlet Universal Catalytic Converter

AUTOSAVER88 ATCC0007 Universal Catalytic Converter

Fits: Universal

Material: chrome steel

Key Features

Autosaver88’s ATCC0007 is additionally a comparatively affordable converter designed as a universal fitting piece for vehicles.

That said, the piece has non-flanged edges with 2.5-inch diameter pipes, which may only be used with a similarly sized exhaust.

The whole structure features a stainless-steel external construction. At the same time, an E.P.A. approved metal catalyst is designed inside on a ceramic-like a thing. However, this catalyst isn’t CARB approved, and thus, you cannot use it in California.

On the extra side, the unit comes equipped with an oxygen sensor. Simultaneously, a guaranty of 5 years or 50,000 miles assures you of excellent efficiency or a free replacement just in case of faults associated with manufacturer errors.

The internal honeycomb structure allows catalysis to react with exhaust gases fully. It doesn’t compromise on the flow, therefore, reduces backpressure. The increased exhaust flow improves the efficiency of your vehicle.

You’ll experience the increased horsepower, and it’ll reduce your mileage. The universal aftermarket converter will reduce the consequences of your engine overheating. It is also an immediate fit, which suggests it’s user-friendly as O.E.M. standards.

The Autosaver88’s ATCC0007 converter also eliminates the check engine light and removes restrictions that hinder your vehicle’s overall efficiency. It is a high-quality component made up of premium materials for durability. It is also extremely economical, making it better value for money.

However, the converter isn’t ideal for engines exceeding 2 litres in capacity. Therefore, you ought to be very careful as this may certainly void the warranty.

Reasons to Buy

Reasons to Avoid

9. MagnaFlow 51356 Universal Aftermarket Catalytic Converter

  • Fits: Universal
  • Material: chrome steel

The MagnaFlow 51356 converter has been carefully engineered to figure well with both petrol and diesel applications.

Key Features

MagnaFlow’s universal converter is made from chrome steel for durability and strength. The somatotype may be a clamshell with a 2.5″ outlet and a 2.5″ inlet. Its oxygen sensor location is that the mid bed, and therefore the substrate material is formed from ceramic for a smooth flow.

It’s a universal converter, so you’ll need additional modifications to put in it. The MagnaFlow converter is Federal E.P.A. compliant, but it isn’t CARB approved.

Why Use the MagnaFlow Converter?

The MagnaFlow universal converter is meant to stay your engine check light off. It used C.N.C. robotic manufacturing for precision and sturdiness of the unit. The converter exceeds E.P.A. requirements, and it’s made consistent with O.E.M. standards.

MagnaFlow’s universal converter is meant to enhance your vehicle’s overall efficiency by increasing horsepower, decreasing fuel consumption. There is a smooth flow of oxygen, so there won’t be any backpressure.

If your car shows emissions codes, it is best to see your spark plugs, engine, and components in your vehicle before changing the converter. It’s known to be easy to install; however, you’ll need additional assistance because it does require cutting and welding.

The MagnaFlow converter is formed with premium materials, and it’s a cheap component. It’s a 50,000-mile construction warranty also as a 25,000 emissions warranty.

Reasons to Buy

Reasons to Avoid

10. Walker 15634 EPA Certified Standard Universal Catalytic Converter

  • Fits: Pre-OBDII vehicles (1995 and older)
  • Material: chrome steel, Aluminum

Key Features

It is another best aftermarket converter from Walker, and it’s designed for Pre-OBD2 vehicles instead, as compared to the one above. It’s simple to put in converter that does not require professional work as it’s an O.E.M. standard design.

The Walker 15634 converter is manufactured using chrome steel on the external shell for durability. The catalytic converter’s internal substrate is formed with ceramic for max flow. The body shape of the converter may be a standard oval shape with a height of 4.25″ and a width of 6.125″.

It has a four-bolt welded flange inlet connection type and a pipe for the outlet connection. It’s no O2 sensor ports and no air tubes, but it’s Federal E.P.A. certified.

Walker’s converter is formed with aluminized piping, and it comes with heat shields for max longevity. The thick O.E. flanges, brackets, and hangers make sure the converter’s overall strength.

The Walker converter is manufactured to satisfy your vehicle’s standard emissions requirements. The body and warmth shields are made with premium quality materials that ensure durability & stability. It also includes a gasket and a pipe assembly for straightforward installation.

It’s both universal and an immediate fit, which suggests it’ll fit older & newer applications easily with none hassles with the installation. The O.E. style routing and hanger position make it easy to put in.

The Walker converter provides optimal efficiency for your vehicle. It protects the opposite components in your car from contaminants and fouling. It also eliminates foul exhaust smells and features a maximum oxygen flow.

Reasons to Buy

Reasons to Avoid

Best aftermarket car catalytic converter Buying Guide

If you’ve got decided to shop for an aftermarket converter, here are a couple of belongings you should learn before buying one.

Types of aftermarket catalytic converter

Categories

Catalytic converters are often defined in two categories: two-way and three-way. The two-way converter oxidizes both carbon monoxide gas and hydrocarbons. The three-way does equivalent duties because the two-way but also aids within the reduction of nitrogen oxides. Within us, all catalytic converters utilized in new vehicle production after 1981 were required by law to be three-way converters.

Classification

Any aftermarket converter or cat sold as a factory replacement are often classified in two ways: standard or high flow. Standard catalytic converters are very almost like what the carmaker uses and is compliant with most state’s emission standards.

Hi-flow catalytic converters are specially engineered to assist a vehicle in producing more horsepower and torque while still reducing harmful emissions. They assist the engine in creating more power by reducing the quantity of back pressure within the exhaust. It suggests the engine doesn’t need to work as hard because it doesn’t need to push hot exhaust gases through a restrictive pipe. Instead, the exhaust gases flow more freely, exiting the vehicle.

Hi-flow cats are most ordinarily employed by car enthusiasts who want the foremost power from their car while staying compliant with local laws. It’s essential to read the documentation included with replacement catalytic converters to make sure compliance together with your county, state, or national regulations. Several manufacturers make replacement catalytic converters. A number of the foremost popular choices include Magnaflow, Pace Setter, and DynoMax.

Regulations

Before purchasing an aftermarket product, you ought to do your research on what sort of emissions your car is regulated to supply. This information is usually located on your emission sticker, located under the hood of your vehicle. If the converter that you’ve got purchased doesn’t meet these regulations, then it is not beneficial. Buying an aftermarket converter also runs the danger of a converter performing sub-optimally and falling in need of an emissions test, albeit it should pass. These are all risks that require to be assessed before making a choice.

 

Durability

Since aftermarket products are used before, they’re going to affect and break much faster than new products. They will even be susceptible to damage during collisions, which can cause you needing another replacement, and in extreme cases, can cause damage to your emissions system. Generally, the lower the worth of an aftermarket converter, the lower its projected lifetime. If you are doing opt in to purchasing an aftermarket product, being conscious of this potential problem and knowing the signs of a failing converter can assist you to avoid the risks related to your catalytic converter’s failure.

Price

While nearly always cheaper than the O.E.M. version, aftermarket catalysts will fluctuate in price counting on the standard of the parts and therefore the make and model of the vehicle that a replacement is being sought. While it’s often tempting to travel for the most cost-effective, this might not be the simplest option within the future.

Construction Material

A converter is just a chrome steel box that’s attached to the muffler. The package contains beads, and it’s coated with catalysts on the within, usually with compounds like alumina & ceria.

Catalytic converters are made from various metals, but most ordinarily include palladium, rhodium, and platinum.

Working Temperature

Catalytic converters are most effective once they are hot, roughly 750-degree Celsius (about 1400-degree Fahrenheit). However, they’re going to fail over time thanks to the quantity of warmth they routinely affect or if they’re operated at temperatures above 750-degree Celsius.

Oxygen Sensor

An oxygen sensor is integrated into the converter to assist the E.C.U. (Engine Control Unit) regulate the exhaust gas temperatures (E.G.T.) and make sure the maximum lifetime of the catalyst. When a converter fails, the owner of the vehicle is required by law to seek out an appropriate replacement that meets the local emission standards of the state or country.

Universal Fittings

A universal fit isn’t an o.e.m component. You will need additional modifications and alterations done on your vehicle to suit a universal converter. Although universal fits are generally cheaper, the installation is more labour-intensive.

You’ll need various tools to put in a universal converter. Components and vehicle-specific parts will get to be purchased separately. Installation isn’t easy, and it’ll take tons of your time & the extra features and modification required for a universal fit may cost you more.

Conclusion

As you’ll see, there are tons to find out about catalytic converters. If you feel it is time to exchange your converter, try one among the brands mentioned above. They’re all trusted manufacturers that make their converters with quality materials to make the sure maximum performance for your car.

It would seem MagnaFlow, and therefore the Walker brands are the highest manufacturers on the market at the instant. So if you are looking for a converter that’s not getting to be challenging to put in and won’t break after a couple of miles, MagnaFlow and Walker components are for you.

To minimize your vehicle’s footprint, and to avoid legal actions, confirm your car features a properly certified converter consistent with your state’s requirements. It won’t only protect other components in your vehicle but also cover the environment from pollutants.

Improve the performance of your vehicle and contribute to eliminating emissions by purchasing one among the above premium quality catalytic converters.

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