This review shall be focusing on the 10 best exhaust system for GMC Sierra. We know that one of the surest ways to get the best out of your GMC truck is to replace your old and faulty exhaust system. We paid attention to not only exhaust systems that will give you deep throat or aggressive growl, but the ones with the best torque and power.
Our list was created after carefully going through real customer ratings and reviews as well as the products’ performance. Therefore, if you are confused about which exhaust system to choose for your GMC truck, we have got everything covered in this article review.
Ready? Let’s dig in right away!
Comparison Table of 10 best exhaust system for GMC Sierra
| PRODUCTS IMAGE | BRANDS | DETAILS & PRICE |
|---|---|---|
  | 1. Borla Cat-Back 140572 | |
  | 2. Flowmaster Cat-Back 17428 | |
  | 3. Borla Cat-Back 140571 | |
  | 4. Borla Cat-Back 140537 | |
  | 5. Flowmaster 717857 | |
  | 6. Borla Cat-Back 140545 S-Type | |
  | 7. Flowmaster Cat-Back 817680 | |
  | 8. Flowmaster Cat-Back 717787 | |
  | 9. Flowmaster Extreme Cat-Back-817916 | |
  | 10. Borla Cat-Back 140800 S-Type Exhaust System |
Top 10 Best GMC Sierra Exhaust Systems Reviews Of 2021
1. Borla Cat-Back 140572 Exhaust System for GMC Sierra
The Borla Cat-Back 140472 exhaust system features a bright chrome stainless steel tip. Its multi-core technology from Borla is designed to reveal your truck’s hidden horsepower. With its increased velocity, what you get with this exhaust system is increased power for more exciting driving. In our list of products, this Borla exhaust is one of the best exhaust system for GMC Sierra.
You also get to economize your truck’s fuel consumption while enjoying the unique power sound that Borla exhaust systems are known and respected by drivers everywhere.
Built from high quality, premium T-304 austenitic stainless steel, which is more superior to the knockoff T-400 series, each system is designed to ensure you enjoy the absolute best when it comes to durability and performance.
It also features mandrel bends that are ultra-smooth so that you are guaranteed maximum power and flow. Its computer-controlled CNC precision during manufacturing is there to ensure it fits your truck.
We also love that Borla backs its exhaust systems with a million-mile warranty so that you have one last thing to worry about when choosing the right exhaust system for your GMC truck.
Product Features:
- T-304 stainless steel tips
- Crew cab short bed
- Wheelbase
- Fits 2014-2018 Sierra 1500 model
- Has heat shield
Product Specifications:
- Brand – Borla
- Item weight – 61 lbs
- Model – 140572
- Product dimensions – 12 x 19 x 66”
Pros:
- High quality and perfect fit
- Easy lining up the tailpipes
- Comes with heat shield for brake cables
- Ease of installation
- Aggressive and powerful best sounding truck exhaust
- Increases fuel mileage
- Good torque and power
- Durable
Cons:
- Can give off constant hums especially when descending a hill or steep areas
2. Flowmaster Cat-Back 17428 Exhaust System for GMC Sierra
This is the exhaust system for anyone looking for an exhaust with aluminized steel with a moderate interior tone and an aggressive external tone. This American Thunder exhaust system features a 16-gauge aluminized mandrel-bent steel tubing to ensure optimum performance and durability. This Flowmaster is our 2nd recommendation of the best exhaust system for GMC Sierra.
Its muffler is stainless steel to give you a combination of moderate sound when inside so that you can have conversations without having to scream. And then an aggressive one when listening from the outside to show off your truck’s power and torque.
With a dual 2.50” tailpipes, it clears factory spare tires while providing you with 2 exit locations. It can come out straight from the back or behind the wheels for those times you need to tow something. The design is made to fit your truck easily and comes with all necessary hardware and parts. And if you have used Flowmaster products before, then you will know of their 3-year limited warranty, which also comes with this exhaust system.
Product Features:
- Aluminized mandrel-bent steel tubing
- Hardware and hangers for installation
- Dyno-tuned
- 40 series muffler
Product Specifications:
- Brand – Flowmaster
- Item weight – 73 lbs
- Model – 17428
- Product dimensions – not specified
Pros:
- Great powerful sound
- Inclusive of all necessary parts for easy installation
- Makes use of already existing catalytic converter from factory
- Aluminized steel tubing for durability
- Good torque and power
Cons:
- You might notice that it cab-drones when on 55-60 mph
3. Borla Cat-Back 140571 Exhaust System
The Borla 140571 exhaust system kit is an S-Type kind of cat-back exhaust system with stainless steel (T304). The GMC exhaust also features a 3 and a half inch muffler with an inch pipe diameter of 2-1/4. Additionally, it is a single exhaust system that has dual exit or what is commonly known as a split rear exit. This is our 3rd recommendation of the best exhaust system for GMC Sierra
Its tip is made of T304 stainless steel. It boasts of a head-turning powerful tone that shows nothing but power and torque. The Borla 140571 comes with the right set of packing filament with a pattern that its core is perforated. Also, its core dimensions are straight through.
To ensure you get that intimidating powerful sound that is unique to Borla, the 140571 model comes in a cylindrical shape to meet up with your expectation every time you step on the throttle.
Product Features:
- S-type cat-back exhaust system
- Round and angle cut exhaust tip
- 3 and a half inch muffler
- Stainless exhaust tip
- Rear exit position
- Dual outlet
Product Specifications:
- Brand – Borla
- Item weight – 55 lbs
- Model – 140571
- Product dimensions – not specified
Pros:
- Throaty and aggressive tone
- High power and torque
- Decibel sound wave level range
- No need for ramps
- Easy installation
- Boosts power
- Durable
- Perfect fitment
Cons:
- Can get quiet when descending a road or hill
4. Borla Cat-Back 140537 Exhaust System
Are you ready to mount an offensive with your exhaust system? The Borla 140537 is the perfect choice for anyone looking to regain their optimum acoustics with their truck. What you get with this exhaust system is not just a modern muscle car, but a very powerful and enhanced system that is tuned to an aggressive and loud exhaust note.
It is an acoustically tuned applied kinetics (ATAK) exhaust system technology so you can expect the dB level of the highest standard without distortion or interference with the conversations you make inside the vehicle.
The Borla cat-back 140537 is tuned to sound like a graphic equalizer and, at the same time, tuned in such a way that it meets your truck’s specifications. So, you are sure of getting the sound you seek for not leaving out the power and torque that comes with Borla multi-core exhaust systems.
It features a handmade premium austenitic stainless steel of 300-series and mandrel-bent piping that is ultra-smooth.
Product Features:
- 304 stainless steel tip
- Rolled edge tip
- Dual outlet/single inlet
- Split rear exit location
Product Specifications:
- Brand – Borla
- Item weight – not specified
- Model – 140537
- Product dimensions – not specified
Pros:
- Easy installation
- Little to no drone
- Aggressive cold start tune
- Nice throaty growl when starting
- More power and torque
Cons:
- Doesn’t come with a clamp
5. Flowmaster 717857- FlowFX Cat-Back Exhaust System
The Flowmaster exhaust system 7117857- is a 100% stainless steel exhaust system that will give you high quality and at the same time give you superior performance. It has the best design and unique build that makes it a leader brand in the market.
You can use this exhaust system with any type of environmental situation. It has a deep powerful tone inside and outside of the vehicle. Its high flow performance provides you the maximum capacity of your exhaust flow. The result is an engine that remains cool even with low exhaust temperatures.
Thus, it is energy-efficient and at the same time cost-efficient too. You will have more horsepower. It is robust and sturdy. It provides service for a long time. You definitely can trust on this product on its long term service.
Its installation is very easy. Therefore, a beginner can install it smoothly and effortlessly. You don’t have to think much about rust. Its stainless steel ensures rust will not occur on your exhaust system. Meanwhile, it is also corrosion-resistant. As a result, you can enjoy its performance for many years.
Product Features:
- Welded on hangers
- 3-inch tubing
- Single outside exit
- Round black ceramic coated tips
- warranty service
Product Specifications:
- Brand – Flowmaster
- Item weight – 60 pounds
- Model – 717857
- Product dimensions – 59 x 15.5 x 16”
Pros:
- Great sound
- Keeps the engine running cool
- Lesser fuel consumption
- More horsepower and torque
- Easier to install
- Fits well
Cons:
- Factory removal probably the hardest part
6. Borla Cat-Back 140545 S-Type Exhaust System
With that patented straight-through technology from Borla, the 140545 S-type cat-back exhaust system comes with hidden horsepower waiting to be unleashed. It features multi-core technology that gives Borla its powerful, distinctive sound. So, this dual exhaust system for GMC sierra is awesome.
You are sure of it lasting long while offering outstanding performance. With the 140545 models, you get to enjoy maximum power and flow as well as an accurate fit. It comes with a million-mile warranty for some peace of mind.
You can expect the sound from this exhaust system to not just serve as a sweet growling sound you expect from your truck, but also some form of communication. It provides you with acoustic feedback of your engine’s rpm to help out in times of making critical decisions when stepping on the throttle or changing gear.
As a leader in the manufacturing of premium T-304 stainless steel exhaust systems, the Borla 140545 is just the right system for your GMC sierra dual exhaust.
Product Features:
- Mandrel bent piping
- T-304 stainless steel
- Straight exit styles
- Dual exhaust type
- Stainless steel tailpipe
- Turbo muffler
Product Specifications:
- Brand – Borla
- Item weight – 62 lbs
- Model – 140545
- Product dimensions – not specified
Pros:
- Million-mile warranty
- High quality austenitic stainless steel
- Durable and high-quality
- Aggressive sound
- Maximum power and flow
- Accurate fit
Cons:
- You may experience some droning.
7. Flowmaster Cat-Back 817680 Exhaust System
The America Thunder Flowmaster 817680 exhaust system model is for anyone looking for an iconic sound or for a deep and growling aggressive sound. It reduces your truck’s fuel consumption while increasing its horsepower.
Flowmaster is a known name in the exhaust arena for the best performing exhaust system, especially in the area of innovative design, powerful tone, and huge power gains. If you are interested in having an exhaust system with moderate to aggressive tone rates, whether inside or outside of your truck, you can rely on this model.
You get to enjoy its durability, all thanks to its stainless-steel design with a Super 40 muffler series. This is in addition to its stainless-steel tail pipes and dual mandrel bent tubes. It is then finished off with stainless steel polished tips of 3.50.”
No need to worry about welding since this is a bolt-on exhaust system for easy installation. It is equally dyno-tuned to ensure maximum power and torque.
Product Features:
- Includes required hardware, connectors, and clamps
- Bolt-on design
- Polished stainless-steel tips
- Dual mandrel bends
- 40 series muffler
Product Specifications:
- Brand – Flowmaster
- Item weight – 66 lbs
- Model – 817680
- Product dimensions – not specified
Pros:
- Limited lifetime warranty
- Stainless-steel design for durability
- Dyno-tuned for optimal performance
- Delta flow technology from Flowmaster
- Less fuel consumption
- More torque and horsepower
- Easy installation
Cons:
- Poorly made clamps in the accompanying kit
8. Flowmaster Cat-Back 717787 Exhaust System
This is our 8th review of the best exhaust system for GMC Sierra. Flowmaster 717787 exhaust system is one of the newest models from Flowmaster’s line of cat-back systems. It features a dual 2.50” tailpipe system of dual capacity. This is the right exhaust system for anyone looking for a moderate interior and aggressive exterior sound level.
It features a 409S stainless-steel mandrel-bent tubing that flows straight-through the muffler for deep sound and maximum power. The 717787-exhaust system also comes with dual black ceramic stainless-steel tips of 4” that show off the Flowmaster logo. It then exits just right in front of the back tire.
Additionally, it comes with all the hardware and parts needed for full and easy installation with detailed instructions. But do note that this model does not fit any vehicle model that is 2wd crew cab that has a 2-piece driveshaft.
However, because it is dyno-tuned, you are sure that the Flowmaster 717787 exhaust system will perform as expected.
Product Features:
- Moderate/aggressive tune
- Stainless-steel tip
- The dual tailpipe system
- Mandrel-bent tubing
- All necessary hardware and parts
Product Specifications:
- Brand – Flowmaster
- Item weight – 41.6 lbs
- Model – 717787
- Product dimensions – 40.5 x 20.5 x 10”
Pros:
- Inclusive of all needed parts for easy installation
- Stainless-steel tip ensures durability.
- Deep aggressive sound
- More torque and power
- Great performance
- Mandrel-bent tubing
- Dyno-tuned for optimum effect
Cons:
- The sound may be a little too loud when taking off
9. Flowmaster Extreme Cat-Back-817916
The Flowmaster 817916 Cat-Back is an exhaust system that you should buy. The reason is it is a great product at a very affordable price. It does not compromise with the quality that every consumer demands. You will enjoy its service for a long time. Certainly, it is rustproof and corrosion-free. At the same time, it provides you quality at a reasonable price.
It has a stainless steel construction that will ensure its long life cycle. The Flowmaster 817916 exhaust system has a race Proven Outlaw Muffler Technology. It provides you extraordinary performance that a few products can deliver.
The system is manufactured using 409 stainless steel for durability and uses the factory hangers. As an Outlaw extreme system, this will deliver a very aggressive sound both outside and inside the truck that will get you noticed. Comes with all hardware and detailed instructions for an easy installation that can be done in less than an hour.
It ensures you have reduced backpressure while your engine enjoys more clean and cool air. The sound of this model makes is tuned to fit your particular truck.
Product Features:
- Cover included
- Robust build
- More horsepower
- Warranty included
- Clamps and other parts are included
Product Specifications:
- Brand – Flowmaster
- Item weight – 19 lbs
- Model – 817916
- Product dimensions – 42 x 21 x 14.25 inches
Pros:
- Easy installation
- Improves fuel consumption
- More horsepower and torque
- Rich deep and aggressive sound
- Stainless-steel tip
Cons:
- Might experience some drone
10. Borla Cat-Back 140800 S-Type Exhaust System
The Borla 140800 S-Type Cat-Back Exhaust System features an aluminized steel of heavy-duty meant to deliver optimum quality without having to be so expensive. This is our last product recommendation of the best exhaust system for GMC Sierra.
The exhaust sound provides acoustic feedback of engine rpm to aid the driver in critical decisions such as gear selection or throttle input in rev-match shifting. Combining patented technology with computer modeling, extensive prototyping, and advanced sound analysis tools. BORLA(R) engineers spend countless hours tuning exhaust systems to best reflect the personality and performance of vehicle applications. The result is an enhanced driving experience.
Product Features:
- Bolt-on installation
- Aluminized construction
- Mandrel-bent tubing
- Stainless steel
- Single Round Rolled angle-cut tip
Product Specifications:
- Brand – Borla
- Item weight – 55 lbs
- Model – 140800
- Product dimensions – 60 x 18 x 17 inches
Pros:
- Rust-free exhaust with complete sealed tubing
- Stainless-steel black tip
- Easy installation with bolt-on installation
- Affordable pricing
- Top-notch quality
- More horsepower and torque
- Aggressive and powerful sound for your truck
- Aluminized steel construction for durability
Cons:
- The sound can be a little too loud
Some Other Famous Exhaust System For Sierra Truck You May Check
CORSA Sport Cat-Back Exhaust System- Model 14925
MBRP Cat-Back Single Exit Exhaust System- Model S5080AL
Magnaflow Cat-Back Exhaust System- Model 15267
Magnaflow Exhaust System- Model 15270
Flowmaster American Thunder Cat-Back System- Model 817669
Buying Guide For GMC Sierra Exhaust System
Here are some factors that you must look into in an exhaust system, before buying it.
Existing exhaust
You must identify the existing exhaust system for your GMC Sierra Truck. This will tell you a lot about the product you must look for and narrow your search. Maybe you are looking for the same exhaust system. In that case, you will be able to find a new set without much effort.
Dimensions
You must be aware of the expectations of the GMC Sierra exhaust system. Are you looking for a better system than the existing one? A better system, will not only reduce the noise but will also improve fuel efficiency significantly. You may also go for a louder exhaust system, but they will not improve the fuel efficiency or mileage of the car. Irrespective of that, you must make sure that the dimensions of the system perfectly fits in the car.
Material
The next thing that you must look at is the material of the exhaust system. The material of the system determines the durability in the long run. It is extremely normal for an exhaust system to corrode or breakdown if the material is not durable. So, how can you choose the correct material in an exhaust system? The best way is to assess the conditions it will go through. If you live in a moist area, then there are high chances of corrosion. Therefore, you must look for a material, which is resistant to corrosion like stainless steel. Similarly, you can choose other materials, as per the climatic conditions in your area.
Additional features
You must look for additional accessories in the kit like repairing tools. Some kits even consist of extra washers, which will allow you to fix the system quickly.
Budget
The exhaust system of a car is surely not cheap to install. Thus, you must make sure that the GMC Sierra exhaust chosen by you completely comes within your budget. Never buy an expensive kit, which can affect the budget. Many car owners spend a lot on exhaust systems, as they look for additional features. However, we would recommend you to refrain buying kits with additional accessories, if it does not fit in your budget.
Installation
The last factor for buying an exhaust system is to look for easy installation. Some exhaust system kits come with manual guides, which makes it easy for you to install it. Moreover, a reputed system will surely have an online installation tutorial. Thus, you must prevent buying a system, which may require professional assistance.
FAQ’s about GMC Sierra 1500 Exhaust Systems
Which material is best for the GMC Sierra exhaust system?
In the present market, there is a wide variety of exhaust system based on material. However, we would recommend you choose a stainless steel exhaust system every time. Why? It is because these systems offer higher durability as compared to other exhaust systems in the market. They are resistant to rust and corrosive, which can cause due to moisture and other factors.
Is a crack counted as damage in the Sierra exhaust system?
Even a small crack can increase the level of noise significantly. Moreover, if you ignore the crack, then it is most likely going to widen up. Therefore, you must make sure that you deal with a crack as soon as possible. Usually, welding is the most effective solution to deal with this condition.
Can welding fix every situation in an exhaust system?
No, welding is not the perfect solution for fixing the exhaust system. There are conditions, where the cracks or holes cannot be welded. Moreover, some holes cannot be welded due to their large size. Thus, in any of these situations, you must replace the exhaust system.
Can you fix the exhaust system of other cars in GMC?
To be frank, you will not be able to do that. Every exhaust system has been designed for specific models of the car. For instance, you cannot expect a Ford system to fit in Toyota. Therefore, you must always select the correct system, which is compatible with GMC.
Will the exhaust system increase the mileage of the Sierra truck?
Yes, an exhaust system of the GMC Sierra has surely improved the mileage in the long run. Thus, you won’t observe any difference in the short run. The system increases the overall efficiency of the engine. Therefore, the level of power increases and fuel consumption decreases. However, it also depends on the quality of the exhaust system installed in the car.
Conclusion
We have listed the 10 best exhaust system for GMC Sierra that you should choose from when considering a change of your truck’s exhaust system. There are many things to consider before you settle for a particular product. And having so many products out there can be confusing.
As a GMC Sierra truck owner, you probably know how important it is that you get an exhaust system that offers you more torque and power. And this is not to mention that all-important aggressive sound that a good exhaust system offers.
Take your time and go through each product mentioned in this article and not just base your decision on affordability. Our aim is to make sure that you end up with an exhaust system that will serve you well and for a very long time.
We recommend you to read our other reviews on- Best Exhaust System for Toyota Tacoma, and Best Shocks for Toyota Tundra.