10 Best exhaust system for GMC Sierra

By James K. Johnson

One of the most important purposes of an exhaust system is to keep the engine running smoothly and efficiently. When it comes to determining how well an engine is doing, many drivers rely only on the sound and smell it emits as an indicator.

A key step in the operation of a combustion engine is the release of incoming gases into the engine’s combustion chamber. Exhaust systems and mufflers are often used in contemporary automotive engines to do this task. A combustion engine exhaust system’s capacity to effectively remove residual fuel mixes depends in significant part on the serviceability of its many components, each of which has its own unique structural features.

The greatest and most often used ones are reviewed here, along with a shopping guide to help you make an informed decision.


There are a lot of alternatives to select from when it comes to this system, making it difficult to choose the best.

Other considerations include a high-quality Catalytic Converter, an exhaust manifold, an exhaust tailpipe, and mufflers.

These, along with a slew of other issues, are the real stumbling blocks for exhaust systems. They reveal the system’s purpose and the extent to which its capabilities may be adapted to meet your needs.

Cat-Back Exhaust System for GMC Sierra 140572 by Borla

Are you looking for the best exhaust system for GMC Sierra that will give you the most power while also saving you money on gas? In such a case, Borla 140572  is just what you’re looking for, and it will meet your requirements to a tee.

The stainless steel tip on the Borla Cat-Back 140572 exhaust system is brilliant chrome. Borla’s multi-core technology aims to unlock your truck’s hidden potential. You’ll be able to get more power out of your motorcycle with this exhaust system. This GMC Sierra Borla exhaust system is among the best that we have come across.

If you’re a fan of loud noises and want to maximize the acoustics of your vehicle, this is the best option for you.

Not only will you receive a state-of-the-art exhaust system, but you’ll also get one that is more powerful and calibrated to produce an aggressive and loud exhaust noise.

The name ATAK, which stands for acoustically tuned applied kinetics, is also known as this product’s revolutionary exhaust technology.

You may expect your sound system’s decibel (dB) level to be of very high grade and quality when using this technology.

High-grade, premium T-304 austenitic stainless steel is used in the construction of each system, making it superior to the imitation T-400 series in terms of long-term use and performance.

In addition, you won’t encounter any interference or distortion when having a conversation in your car.

Graphic equalizer-like tuning is used in this method.

Harmonic tuning takes place in a way that’s tailored to your truck’s needs.

As a result, BORLA’s multi-core exhaust system ensures that you get the sound you desire while retaining maximum torque and power.

Mandrel-bent stainless steel pipe and fine-quality 300-series stainless steel are both included.


  • A little buzzing noise, if there at all, or none at all.
  • Installation is simple and doesn’t need the services of an expert.
  • Cold start song with a vengeance.
  • Increases the power and torque of the engine.
  • When it first starts, the engine makes a pleasant heavy growl.


  • Constant humming is possible, particularly when descending a slope or in other difficult terrain.

GMC Sierra Cat-Back Exhaust by Flowmaster 17428

GMC Sierra Cat-Back Exhaust

There aren’t many other options out there that can match this to the best exhaust system for GMC Sierra system’s combination of quiet inside noise and loud outside noise. This U.s Thunder exhaust system features a 16-gauge made of aluminum mandrel-bent steel tube for maximum durability and reliability. The second exhaust system we’d recommend for a GMC Sierra is the Flowmaster, and it fits perfectly.

When you’re driving, you don’t have to shout in order to be heard because it has a stainless steel muffler. An aggressive tune can be played from the outside of the vehicle to demonstrate the truck’s impressive power and torque.

The twin 2.50″ tailpipes allow you to take off from two different locations, in addition to clearing the factory spare tyres. Depending on your requirements, towing can be done from the rear or from behind the wheels. Installing the kit is a snap thanks to the fact that it is sized specifically for your truck and comes with everything you need. A 3-year limited warranty is already familiar to anyone who has used a Flowmaster exhaust system.


  • A smothering and effective sound.
  • Has everything you need for a simple installation.
  • Utilizes a factory-installed catalytic converter.
  • Steel tube that has been aluminized for extra toughness.
  • A good amount of power and torque.


  • When travelling at 55-60 mph, you may hear the “cab-drone.”

Performance Exhaust System 15267 MagnaFlow Cat-Back

Performance Exhaust System 15267 MagnaFlow Cat-Back

Selecting the best exhaust system for GMC Sierra system can be a difficult task. The good news is you don’t have to worry about anything with MagnaFlow.

Looking for a system that is both cost effective and high-performing? Look no further. The sound produced by this exhaust system is both smooth and strong, making it a popular choice.

If you’re looking for something to get your pulse racing, look no further than this. This isn’t the product for you unless you want a loud exhaust system.

This is the one to get if you’re looking for an exhaust system. In order to produce the product, the United States and other countries collaborated.

The MagnaFlow 15267’s straight-through current designs allow it to produce an infinite amount of torque and horsepower while still maintaining reasonable exhaust emissions.

It is common to compare these plans to SAE j11169 guidelines because of the way they incorporate a planned equilibrium between exterior and interior noise levels.

One of the system’s most notable features is the ease of installation. This makes it easier to install the device.

There is no reason why you cannot install your own system, despite the fact that professional installation is almost always done quickly and effectively

For both the exterior and interior, it has a well-established power system and an excellent sound system.


  • The installation process is straightforward.
  • It’s a less expensive option.
  • The precision and cleanliness of its welds have to be commended.
  • For a variety of automobiles
  • It has a pleasant and appropriate tone!


  • The chrome may be peeled off.

Cat-Back Exhaust System by Flowmaster 817669

Cat-Back Exhaust System

An American-made exhaust system, the Flowmaster 817669, is the go-to option for those seeking a growling, deep, and powerful tone.

Retains maximum power and reduces the amount of fuel consumed by your truck.

In the exhaust sector, the maker of this product is well-known for producing some of the most powerful exhaust systems, as well as those with a strong tone and cutting-edge design.

Flowmaster 817669 is your best choice if you’re looking for the best exhaust system for GMC Sierra with moderate to strong tone rates, regardless of whether it will be installed outside or inside your vehicle.

The stainless-steel construction, which includes a super forty muffler series, ensures long-term durability. Tailpipes are made of stainless steel with double mandrel-bent tubing, as is the rest of the vehicle.

It’s finished off with a stainless steel shine applied to its points. This exhaust system ensures corrosion resistance even if exposed to moisture and other elements, which is a common occurrence.

In addition, the system’s lifespan will be extended as a result of this.

Flowmaster 817669 is a bolt-on exhaust system, so you don’t have to worry about welding it in. For maximum torque and power, it’s also been dyna-tuned.


  • The excellent audio quality and ease of installation make this system an excellent value.
  • It’s a powerful exhaust system with a nice, deep tone.
  • With a polished finish, the result is stunningly beautiful.
  • Multiple vehicle types are compatible with this product.


  • Clamps weren’t tight enough to keep it in place, and it fell apart.
  • Unfortunately, the pipe and clamps on the left aren’t up to snuff.

A Cat-Back Exhaust System by Borla

A Cat-Back Exhaust System by Borla

Is your exhaust system ready to go on the offensive? Borla 140537 is the best option for those who want to restore their truck’s original sound. In addition to a current muscle automobile, this exhaust system provides a strong and upgraded system suited to an aggressive and loud exhaust tone.

ATAK exhaust system technology provides the highest dB level without distortion or interference with in-vehicle conversations.

Borla’s 140537 cat-back is designed to sound like a graphic equaliser while also fitting your vehicle’s needs. Borla multi-core exhaust systems deliver the sound you want with the power and torque you need.

This product is made of premium 300 grade stainless steel and mandrel-bent pipe.


  • The installation process is straightforward.
  • There is very little to no drone activity.
  • Tune for a hard start.
  • Starts with a nice throaty grumble.
  • Increased torque and power.


  • No clamp is included.

717857 FlowFX Cat Back Exhaust System by Flowmaster

717857 FlowFX Cat Back Exhaust System

With the Flowmaster exhaust system 7117857-, you get a high-quality, stainless steel exhaust system that performs above and beyond. As a result of its unique design and superior quality, it has become a market leader.

Regardless of the environment, this exhaust system can be used. Both inside and out, it has a rich, resonant tone. High-flow performance ensures that your exhaust system’s flow capacity is utilised to its full potential. As a result, the engine remains cool even at low exhaust temperatures.

Because of this, it saves money and resources. With more power, you’ll be able to accomplish more. It’s a long-lasting piece of equipment. Because it has such a long life expectancy, it can be trusted. For many years, you can count on this product.

Setting it up is a breeze. As a result, even a novice can easily and quickly put it up and running. No need to be alarmed about the possibility of rust building up. Your exhaust system won’t rust thanks to its stainless steel construction. Corrosion resistance is another benefit. As a result, you can look forward to years of enjoyment from its capabilities.


  • The sound quality is excellent.
  • Ensures proper cooling of the engine.
  • Less gallons of gasoline used.
  • Power and torque enhancements.
  • Simpler to set up.
  • Exactly what I needed.


  • The most difficult part of the project is demolishing the factory.

An exhaust system with a BORLA 140546 Cat-Back

exhaust system with a BORLA 140546 Cat-Back

The BORLA 140546 should be at the top of your list if you need an exhaust system that is particularly designed for a Chevrolet. The Atak system in its design guarantees that it is well-suited for use with a short box crew cab.

Both a 45-degree and a 90-degree exit are available on this exhaust type. As a result, it has the option of exiting via the sides or behind either of the vehicle’s rear wheels. From the rear, this BORLA model does not exist.

However, mud flaps may be necessary to protect the outlets behind the rear wheels from dirt and debris. The BORLA 140546 does not need any welding since it has a superb clamp-on function.


  • Installing is a cinch.
  • The sound is both forceful and quiet.
  • The number of cylinders has no bearing on the volume of sound produced.
  • No welding is required for the clamp to maintain its firm grip.


  • Exit does not take place from the rear.

Extreme Cat-Back Flow Master 817916

Extreme Cat-Back Flow Master 817916

It is recommended that you purchase the Flowmaster 817916 Cat-Back exhaust system. The reason for this is that it is a high-quality product at an affordable price. Is not willing to make any concessions on the level of quality that every customer expects. You’ll get quite a lot more use out of it, I guarantee it. Neither rust nor corrosion can be found on it, which is an undeniable fact. Also of note is that it provides high-quality products at a reasonable price.

The stainless steel construction ensures that it will last for an extended period of time. It has been proven in races that the Outlaw Muffler Technology used in the Flowmaster 817916 exhaust system is effective and reliable. Only a small number of items can deliver the level of performance that this one does.

Long-term durability and dependability are ensured by the use of 409 stainless steel and factory hangers in the system’s construction. Because this is an Outlaw Extreme system, it will produce a loud and aggressive sound both inside and outside of the vehicle as a result of its design. Anything you’ll need for a quick and efficient installation is also included in the package, so you’ll be up and running in no time.

Your engine will run more efficiently as a result of the cleaner and cooler air, and you will experience less backpressure as a result of the cleaner and cooler air. Because your truck has specific sound requirements, the sound of this model has been customized to meet those requirements.


  • The installation process is straightforward.
  • Fuel efficiency is improved.
  • Power and torque enhancements.
  • A rich, deep, and ferocious sound is being produced.
  • Tipped in Stainless Steel.


  • Possibly some drone.

Aftermarket exhaust System

Aftermarket exhaust System

In order to increase the output of your car, one of the most common upgrades is to upgrade the exhaust system. You should be aware that by “aftermarket exhaust,” we refer to the whole collection of pipes, catalysts, and mufflers used to divert exhaust gases away from your engine and the inside of your vehicle. As a result, here are some advantages and disadvantages you should be aware of before modifying your vehicle’s exhaust system.

When shopping for an aftermarket exhaust system, you’ll likely come across one of the following popular types:

All the way from the back of your car’s axle to its muffler, axle-back exhaust systems replace the standard exhaust system.

Cat-back: these exhaust systems connect the catalytic converter at the rear of your vehicle to a muffler at the front and replace the factory system.

Exhaust systems that include a header-back or a full exhaust are known as “header-back/full exhaust.”

Depending on the vehicle, each of these kinds of exhaust systems will provide different amounts of power. Depending on the model, you may not acquire any more power, while in others, substantial gains may be made. Do your homework and find out which one is ideal for your car and what you want to use it for!


  • Improved gas mileage.
  • Better in terms of tone.
  • Boosted performance.


Even with an aftermarket exhaust system, you may not see a considerable increase in power for certain cars. It may be necessary to use an aftermarket ECU or a reflash in order to get the most out of the system. Smaller displacement engines can only accomplish so much and are constrained by their size and factory tune, so even if an aftermarket exhaust system is installed, the advantages will be negligible at best.

System with Cat-Back by MBRP

System with Cat-Back by MBRP

Installing this product was a breeze thanks to the efforts of the company. However, it’s a simple bolt-on, unlike the other two systems, owing to a creative design. Inexperienced mechanics may do the full procedure in 30 minutes or less. The eye-catching design is also a major selling point. It’s precisely what the doctor ordered for strutting your stuff and taking on the outdoors.

Black coat finishing also has a lot going for it. When trying to navigate rough terrain, dry rot and discoloration are a distant memory. Cat-back exhaust systems can only be used on a limited number of vehicles (trucks). The GMC Sierra fits perfectly in this situation, so none of that is an issue.


  • An hour-long bolt-on installation is all that is required.
  • Stylish, eye-catching, and ideal for off-roading.
  • Anti-rust/corrosion protection is provided by a black coating.


  • It is only compatible with a small selection of automobiles.

Filter for Diesel Particulates

Let’s get down to the nitty-gritty. It is necessary to install a diesel particulate filter (DF) at the same location as the catalyst of the engine in today’s diesel vehicle exhausts. In the internal structure, particulates are filtered from air through small nozzles known as honeycombs. The air passing through honeycomb is cleared of smoke and discharged into other exhaust pipes.

Diesel Exhaust’s primary opponent is vibration.

Keeping the corrugated exhaust pipes in good condition is essential for diesel engines because they generate far fewer vibrations than gasoline engines. This will prevent vibration transmission from the engine to the exhaust system, which is essential for diesel engines. The exhaust system on both diesel and gasoline cars is generally the same, although not identical. However, diesel engines are more vulnerable to burnout because of the less heat transferred by combustion vapors during this process.

Features of the Diesel Exhaust System

It’s not surprising that diesel engines are becoming more popular because they have numerous advantages over gasoline engines, such as high horsepower efficiency and long lifespan. However, due to their similar structure to petrol engines, diesel exhausts have some distinct differences that need to be considered.

Buyer’s Considerations for GMC Sierra Exhaust System

In general, there must be certain features that sparked your decision to acquire a product when you perfected your strategy.

To get the most out of your investment when it comes to tech-related items, more care must be taken. As such, it is important to study the product’s reviews, including both the positive and negative aspects, thoroughly.

Technology advancements have improved several characteristics of many items throughout the globe, and this will help you understand their strengths, weaknesses, and possible threats.

Because of this, while purchasing technologically advanced items, you should take into account the current technological trend.

The inclusion of positives and negatives is necessary for a thorough guide since you can be certain that you’re getting nothing but the finest.

Additionally, the product’s features and characteristics are there to help you make an informed purchase choice before you buy it.

To assist you in selecting the best exhaust system for your GMC Sierra, here are a few additional suggestions:

GMC Sierra Lone offers a wide range of goods.

There are many items out there, and it’s crucial that we know which ones have the best features and which ones will help us most. Also, we must ensure that the fit and size of each product is correct to meet our intended usage.

The Borla exhaust is an award-winning exhaust. It is easy to install and performs better than any other product or brand.

If you’re looking for a high-quality exhaust system, go no further than the Borla. You’ll be pleased with the results.

With five distinct sounds, the brand flow master was also chosen a top pick because of its wide variety of applications.

When it comes to exhaust systems, this is the one that stands out from the others.

We all know how important automotive audio can be as a means of communication between the driver and the vehicle.

This means that if you want a high-quality sound with a wide range of variations, you should opt with a Brand flow master, which also has exceptional endurance and resistance to corrosion.

This product, the Flowmaster 817669 Cat-Back System, is one of a kind and long-lasting due to the well-made and high-quality materials that go into its construction.

This exhaust system’s resistance to environmental threats is boosted by the high-quality components utilized in its construction.

Many exhaust systems may be damaged by dampness, which is one of these risks.

Rather of releasing hair into the sky, the magma flow’s garbage collector includes unique qualities such as a polished surface, sturdy substance, and the capacity to tolerate temperatures beyond 2,000 degrees Celsius.

Another benefit of the Corsa 14866 is its high torque and horsepower, and customers have reported that no other exhaust system comes close to matching it in terms of output.

As a result, you’ll save money and get more use out of it.

Before making a purchase, consider the following aspects of an exhaust system.

Preexisting emissions

Identifying your GMC Sierra Truck’s current exhaust system can help you limit down your search for a new set. If you’re looking for the exact same exhaust system, you won’t have to do any searching.


If you want a louder exhaust system, it will not improve your car’s fuel economy or mileage, so you need to know what to expect from your GMC Sierra exhaust system.


The exhaust system’s material should also be taken into account. When the exhaust system’s material isn’t long-lasting, corrosion and breakdown are common occurrences. So, how do you pick the best exhaust system material? Assessing the circumstances under which it will be used is the most effective method. Wherever you live, you should look for materials that can withstand moisture and corrosion.

Additional characteristics

You must seek for other components in the box like mending tools. Some kits even include of extra washers, which will help you to fix the system fast.


The cost of installing a car’s exhaust system is likely to be high. As a result, you must make sure that the exhaust for your GMC Sierra is completely within your price range. Never spend a lot of money on a piece of equipment that you won’t use. When it comes to exhaust systems, many car owners fork over a lot of money. However, if your budget does not allow for the purchase of additional accessories, we advise you not to purchase a kit.



The former factor for buying an exhaust system is easy to install. About exhaust system kits come with manual guides, which makes it easy to install for you. Moreover, a fabled system will surely have an online installation tutorial. Thus, you requisite prevent buying a system, which may require professional assistance.


The cost of installing a custom exhaust system can be quite high. It’s possible that you won’t even notice any significant changes in the way your Sierra behaves at first. On the highway, however, you’ll fall in love with the sound of the engine. The Flowmaster deal is the most cost-effective of the three available today. Additionally, the anti-rust and anti-corrosion protection offered by MBRP is cost-effective.

As for the Borla equipment, it costs nearly twice as much but has the best materials and craftsmanship in the industry. Which one, then, should you pick? It all depends on your budget, and Borla isn’t going to be an option for you because of its high price.

However, if you’re looking for an exhaust system that can withstand a tonne of abuse, it might be the best option. Moreover, we have compiled a list of the ten best exhaust system for GMC Sierra from which to choose. There are many factors to consider before purchasing a product. Having so many options can be confusing. If you own a GMC Sierra truck, you know how important it is to get an exhaust system that increases torque and power. Not to mention the aggressive sound a good exhaust system provides.

Take your time and look over each product discussed in this post and not only base your selection on pricing. Our purpose is to make sure that you end up with an exhaust system that will serve you well and for a very long time.

Hope you like the article on the best exhaust system for GMC Sierra; if you still have some questions or queries regarding the best exhaust system for GMC Sierra mention those in the comment section.

GMC Sierra truck


Are cat back exhaust systems worth it?

In most cases, cat-back exhaust systems improve performance because of the more efficient flow of exhaust through upgraded parts such as larger diameter tubing and better flowing mufflers, as well as the improved sound and reduced weight of the exhaust. Using a cat-back exhaust system means the engine doesn’t have to work as hard to remove exhaust gases. Because the engine has to work less to overcome the reduced resistance, this results in lower fuel consumption. On the other hand, on freeways and city streets, vehicle MPG (or fuel economy) rises. So, yes, it is worthwhile.

Do cat back exhaust systems boost performance?

With a cat-back exhaust, a vehicle’s horsepower is increased by increasing the diameter of the exhaust pipe and improving the muffler’s efficiency. Emissions aren’t affected because the catalytic converters aren’t removed. However, the sound of the exhaust, the fuel economy, and the weight of the vehicles will all improve.

Does exhaust systems offer greater horsepower?

Allowing exhaust gases to exit the combustion chamber allows for more air to be drawn into the chamber for the next combustion. Improved airflow from an aftermarket exhaust boosts horsepower. Allowing the exhaust gas to exit quickly.. The sound of your car’s engine can be improved with an aftermarket exhaust.

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