Magnaflow Catalytic Converter Review

Last Updated on February 4, 2021

As we progress through time, people are becoming more environmentally aware. Laws have been passed to control activities that cause pollution. One such activity is the carbon emission from our vehicles.

Luckily, the introduction of catalytic converters has made it possible to reduce the severity of the emission. The gas that passes through the converter is filtered to give off a less harmful byproduct.

With numerous brands out there, choosing the best one for you might be a perplexing situation. And so, today, we will look into our version of the Magnaflow catalytic converter review to aid your decision-making process.

Magnaflow Catalytic Converter Reviews

We have taken our time to analyze all the top contenders to bring you a list of only the best Magnaflow catalytic converters in the market.

MagnaFlow 99356HM Universal Catalytic Converter

Here we have the 99356HM catalytic converter from the MagnaFlow themselves. They have crafted this device with close attention to detail and innovation.

For starters, this the 99365HM has been designed to compatible with both diesel and petrol engines. This makes the product versatile and readily compatible with most cars on the streets.

The device’s body has been made from top quality stainless steel ensuring its longevity. Also, the seam has been welded closely to the converter body from a more tight-fit. Overall, the sturdiness of the construction makes this converter highly durable.

In addition, the converter will improve your car’s performance with slight gains in horsepower and torque. What’s more, the 99365HM increases the car’s fuel efficiency, saving you some big bucks in the long run.


  • Improves fuel efficiency
  • Increases flow of Oxygen leading to reduced back pressure
  • Stainless steel build to enhance durability
  • Works with both petrol and diesel engines
  • Seam welded closer to the converter body for a tight bond


  • The installation process requires welding and cutting as it is a universal converter

MagnaFlow 23226 Direct Fit Catalytic Converter

With over 30 years of experience, MagnaFlow has been consistently making high-performing exhaust systems, so we have yet another product from them on our list.

Durability and longevity are two things you will not have to worry about when it comes to this converter. The stainless-steel build of the converter enables it to withstand high temperatures.

What’s more, you would be surprised by the sturdiness of the exhaust converter. This is because of the seam that is welded close to the body, giving a tight bond.

Moving on, the 23226 will bring about some fantastic gains when it comes to horsepower and torque. The technology in the device has been made in such a way that it will boost your car’s overall performance. For some vehicles, you might also experience better throttle response times.

Moreover, if you’re someone with a diesel engine, you don’t have to worry about getting some other product. This converter is compatible with both petrol and diesel vehicles.


  • Robust design and build
  • Stainless steel construction ensures durability
  • Works with both petrol and diesel engines
  • Closely welded seam for enhanced sturdiness
  • The direct-fit model is easy to install


  • Isn’t compatible with all car models

MagnaFlow 23120 Direct Fit Catalytic Converter

If you’re looking for an exhaust upgrade while complying with all the federal emission laws, then look no further. The 23120-model converter from MagnaFlow is another example of the brand’s experience in exhaust systems.

Designed as a direct-fit model, the 23120 is more comfortable to install over the other universal converters. The easy bolt-on design makes the installation process much simpler when compared to the welding action of universal variants.

Furthermore, whether you’re running a petrol or diesel engine, this converter will fit just fine. The integrated technology filters pollutants from both the engines efficiently while enhancing your car’s performance.

You should also note that the exhaust system has been made in America. Only the best quality stainless steel was used to construct the body and frame of the device. The steel construction acts as a reassurance for the converter’s durability and longevity.


  • The direct-fit model makes the installation process easier
  • Stainless steel construction
  • Durable build
  • Improves overall oxygen flow for better performance


  • Welding and cutting may be required for some car models

MagnaFlow 99006HM Universal Catalytic Converter

This universal converter is known for its compatibility with most car models. No matter the model, this device will surely enhance the performance and feel of your car.

Right off the bat, we notice the exhaust converter’s clamshell design with a 2.5-inch inlet and a 2.5-inch outlet. Compliant with federal emissions law, you will be safe in the eyes of the law while effectively controlling your carbon footprint.

What’s more, the body of the converter has been constructed with MagnaFlow’s high-quality stainless steel. This metal construction ensures the durability and strength of the device.

In addition, this catalytic converter has been carefully designed with Magnaflow’s very own CNC precision robots. This accounts for the calculated precision of each component. They have integrated a metallic substrate, effectively filtering out all the pollutants from your toxic emissions.


  • Sturdy Build
  • The universal converter will fit all car models
  • Durable and long-lasting due to the stainless-steel construction
  • Works with both gas and diesel engines
  • Made with CNC precision robots for perfection


  • The installation process requires more time and hassle than a direct fit converter

MagnaFlow 99206HM Universal Catalytic Converter

Last but certainly not least, we have another one of MagnaFlow’s HM series converters. These converters are made to be compatible with all car models, and they work great too!

Straight out the box, you will notice the converter’s cold stainless-steel body. The metal construction allows the converter to withstand high temperatures. This is crucial as the exhaust fumes tend to get warmer with time, and so, the converter needs to be able to function at high-temperature levels.

Moreover, the filter has been designed to work with both petrol and diesel engines. And so, no matter which fuel you burn, you will receive similar levels of performance upgrades. Upon installing, you should notice gains in torque and horsepower.


  • Compatible with both petrol and diesel engines
  • Stainless steel construction
  • Universal design fits all cars
  • Federal emissions compliant
  • Highly durable design


  • Requires welding and cutting, which can be expensive


On the whole, installing a catalytic converter should be mandatory for all vehicles, as it is a matter of our planet’s wellbeing. With global warming around the horizon, we should all take steps to reduce our carbon footprints. Moreover, the converter not only makes your car environment friendly but also improves performance.

We hope our Magnaflow catalytic converter review will help you choose the right model for your car.

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