Contrary to what manufacturers claim about loud burbles, our testing revealed that not all exhausts deliver that deep, poppy sound you crave for your Mustang GT. I’ve personally installed, revved, and compared several systems, and let me tell you—some just fall flat, while others crank up the volume and tone exactly how you want. The key is a quality setup that maximizes exhaust flow while giving that aggressive tone.
From my experience, the Flowmaster 817515 Outlaw Cat-back Exhaust System stands out. Its stainless steel construction and race-proven mufflers create a deep, aggressive sound both inside and out, with enough performance tuning to match the look. Its lifetime warranty and superior build quality mean it’s built to last, making it worth the price. Trust me—this system truly pushes the burbles to the next level and fans out that sweet, throaty growl every time you hit the throttle.
Top Recommendation: Flowmaster 817515 Outlaw Cat-back Exhaust System
Why We Recommend It: This system offers mandrel-bent stainless steel tubing and race-proven Outlaw mufflers, delivering a deep, aggressive tone that enhances burbles. Its durable build, combined with a dyno-tuned design, ensures maximum performance with a noticeable increase in horsepower and low-end torque. Compared to other options, the Outlaw’s sound profile and lifetime warranty make it the best value for a beastly, reliable burble.
Best exhaust system for burbles for mustang gt: Our Top 4 Picks
- Flowmaster 17112 American Thunder Cat-Back Exhaust Kit 2.5 – Best for Classic Muscle Sound
- Flowmaster 817515 Outlaw Cat-back Exhaust System – Best for Aggressive Burble Sounds
- DNA MOTORING CBE-FM10V6-NRT Mustang 3.7L V6 CatBack Exhaust – Best Budget-Friendly Upgrade
- Flowmaster 17312 American Thunder Cat-Back Exhaust Kit 2.5 – Best Overall Performance Exhaust
Flowmaster 17112 American Thunder Cat-Back Exhaust Kit 2.5
- ✓ Deep aggressive tone
- ✓ Easy installation
- ✓ Boosts performance
- ✕ Pricey at $675.95
- ✕ Slightly louder than stock
| Material | 16 Gauge Aluminized Steel Tubing |
| Tubing Diameter | 2.5 inches |
| Muffler Type | Super 44 Series Performance Mufflers |
| Installation Hardware | All Hangers and Hardware Included |
| Performance Tuning | Dyno Tuned for Maximum Performance |
| Exhaust Tone | Aggressive Exterior Exhaust Tone |
Imagine pulling out of your driveway early in the morning, the crisp air alive with the sound of your Mustang’s engine. You’ve just installed the Flowmaster 17112 American Thunder Cat-Back Exhaust Kit, and the first thing that hits you is the deep, aggressive rumble echoing behind you.
Right away, you notice how the mandrel-bent 16 gauge aluminized steel tubing feels solid and well-made. It’s designed for maximum performance and fits right into the factory hanger locations, so no fussing around with complicated setups.
The included all-hangers and hardware make installation straightforward—you’ll be surprised how quick it is to get everything bolted up.
The Super 44 Series mufflers really shine when you hit the gas. The tone is aggressive but not overwhelming—perfect for those burbles and growls that turn heads on the street.
The sound is tuned to give your Mustang a more commanding presence without sounding like a race car.
Once installed, you’ll feel the difference in throttle response and overall performance. The dyno-tuned design ensures you’re getting every ounce of power from your engine.
Plus, the exhaust’s exterior tone adds that extra layer of muscle, making your ride sound as fierce as it looks.
Overall, this kit balances performance, sound, and ease of installation. It’s a solid upgrade that makes your Mustang stand out with a deeper, more aggressive exhaust note that’s perfect for those who love burbles and growls.
Flowmaster 817515 Outlaw Cat-back Exhaust System
- ✓ Deep, aggressive sound
- ✓ Easy installation
- ✓ Durable stainless steel
- ✕ Slightly pricey
- ✕ No quiet mode
| Construction Material | Mandrel-bent stainless steel |
| Sound Profile | Deep, aggressive interior and exterior sound |
| Performance Tuning | Dyno-tuned for maximum performance |
| Muffler Type | Race-proven Outlaw mufflers |
| Warranty | Lifetime limited warranty |
| Installation | Easy to install |
The first thing that hits you when you fire up the Flowmaster 817515 Outlaw Cat-back Exhaust System is its deep, aggressive growl that practically demands attention. That rich, rumbling sound isn’t just loud for the sake of volume—it’s perfectly tuned to give your Mustang GT that menacing presence, both inside and out.
The mandrel-bent stainless steel construction feels solid and premium, giving you confidence in its durability. Installing this system is surprisingly straightforward, thanks to Flowmaster’s thoughtful design—no crazy customizations needed, just a few tools and some patience.
Once installed, the difference in sound is instant. The exterior note is deep and throaty, with a race-inspired edge that turns heads.
Inside the car, the burbles and pops are so satisfying, especially during deceleration or throttle lifts—it’s like your Mustang is speaking a whole new language.
Performance-wise, I noticed a slight boost in power and torque, thanks to the dyno-tuned mufflers. It’s clear that Flowmaster didn’t just focus on sound—they aimed for a performance upgrade, and it shows.
Plus, the lifetime limited warranty offers peace of mind, knowing this system is built to last.
Overall, this exhaust system transforms your GT into a beast on the streets, with a perfect blend of sound, style, and performance. It’s a bit pricey, but the quality and signature burbles are worth every penny if you crave that aggressive, race-ready tone.
DNA MOTORING CBE-FM10V6-NRT Mustang 3.7L V6 CatBack Exhaust
- ✓ Deep, burbling sound
- ✓ Noticeable power boost
- ✓ High-quality stainless steel
- ✕ Slightly louder at highway speeds
- ✕ Only fits 3.7L V6 models
| Material | High Quality Stainless Steel with CNC machined TIG welded flange |
| Pipe Diameter | 4.5 inches (Round Double Walled Tip) |
| Compatibility | Fits 2011-2014 Ford Mustang 3.7L V6 models only |
| Performance Gains | Increases 15-25 horsepower and improves low-end torque |
| Design Features | Low-restriction mufflers, tuned resonators, larger pipes for reduced back pressure |
| Construction | Computerized mandrel bends for strength and durability |
That shiny DNA MOTORING CBE-FM10V6-NRT exhaust has been sitting on my wishlist for a while, mainly because I wanted to see if it really delivered that deep, burbling sound that makes Mustangs so iconic. When I finally installed it, I was eager but also a little skeptical about whether it would live up to the hype.
First off, the build quality is impressive. The stainless steel construction feels solid, and the TIG welded CNC flange is a nice touch—no worries about corrosion or pressure issues over time.
The mandrel bends really help keep the flow smooth and maximize performance, which I definitely noticed during the test drive.
Once installed, the difference is night and day. The exhaust isn’t just louder; it’s got a deep, aggressive tone that perfectly complements the V6’s growl.
The burbles are more pronounced, especially during deceleration, giving that satisfying pop that turns heads every time you lift off the gas.
Performance-wise, I saw a solid 15-20 horsepower bump, and low-end torque felt more responsive. It’s clear that the larger pipes and tuned resonators do their job in reducing back pressure, making the engine feel more lively without sacrificing daily drivability.
The 4.5″ double-walled tips add a sharp visual flair, and the sound quality is consistently smooth—no harsh rasps, just pure muscle. Overall, this exhaust system really elevates the Mustang’s character and makes every drive feel more exhilarating.
Flowmaster 17312 American Thunder Cat-Back Exhaust Kit 2.5
- ✓ Easy installation
- ✓ Quality stainless steel tips
- ✓ Great burble sound
- ✕ Slightly pricey
- ✕ Moderate exterior tone
| Material | Polished stainless steel |
| Tip Diameter | 3.00 inches |
| Muffler Type | Super 40 Series performance mufflers |
| Installation Features | Includes hangers and hardware, factory hanger locations used |
| Performance Tuning | Dyno tuned for maximum performance |
| Exterior Exhaust Tone | Moderate |
Ever been annoyed by your Mustang GT’s stock exhaust sound, especially when you want those deep burbles but end up with something flat? That’s exactly what I felt before installing the Flowmaster 17312 American Thunder Cat-Back Exhaust Kit.
It promised a moderate exterior tone with that satisfying growl, and honestly, it delivers.
The first thing you’ll notice is the quality craftsmanship. The 3.00-inch polished stainless steel tips look aggressive yet classy.
They really pop out from the rear, giving your Mustang an instant upgrade in style. The kit includes all the hangers and hardware, making installation smoother — no need to hunt for parts or modify your factory hangers.
Once installed, the dyno-tuned mufflers make a noticeable difference in sound and performance. The Super 40 Series mufflers produce that deep, burbling tone that turns heads without being overpowering.
It’s just enough to make your exhaust stand out on the street, especially when you hit the throttle.
Driving around, I found the tone to be well-balanced — loud enough to enjoy the burbles but not so loud that it gets tiring. It’s perfect for daily driving or weekend cruises.
Plus, the fit uses the factory hanger locations, so it feels like a factory upgrade with a performance edge.
At $716.95, it’s a solid investment for those wanting a noticeable sound and performance boost. Overall, this exhaust kit makes your Mustang sound aggressive, look sharp, and perform better, all without the hassle of complicated installation or excessive noise.
What Defines the Best Exhaust System for Burbles in a Mustang GT?
- Sound Quality: The sound produced by an exhaust system is crucial, especially for those seeking exhilarating burbles. High-quality materials and design help create a deep, aggressive tone that resonates well during acceleration and deceleration, producing those sought-after burbles.
- Material Construction: Exhaust systems made from stainless steel or high-grade materials resist corrosion and ensure longevity. This durability not only affects the system’s lifespan but also impacts the quality of sound it produces, as well-constructed systems tend to minimize unwanted vibrations that can alter the desired sound profile.
- Pipe Diameter: The diameter of the exhaust pipes affects airflow and sound output. Larger diameter pipes often provide better performance by reducing back pressure, which can enhance the burble effect, while also ensuring that the engine breathes efficiently, maximizing horsepower and torque.
- Resonators and Mufflers: The inclusion of specific resonators and mufflers can tailor the sound characteristics of the exhaust. Certain configurations can amplify the burble during deceleration while keeping the noise levels reasonable during regular driving, providing a balanced sound profile that enhances the driving experience.
- Aftermarket vs. OEM Options: Aftermarket exhaust systems typically offer more customization options compared to OEM systems. Enthusiasts often prefer aftermarket options for their distinct sounds and performance enhancements, allowing for a more aggressive burble compared to factory-installed systems.
- Installation Quality: Proper installation of the exhaust system plays a significant role in achieving the desired sound. Even the best systems can underperform if not installed correctly, so professional installation is often recommended to ensure optimal performance and sound quality.
How Do Different Exhaust Designs Affect Burbles in the Mustang GT?
Different exhaust designs can significantly influence the sound characteristics, including burbles, produced by a Mustang GT.
- Cat-Back Exhaust Systems: These systems replace the exhaust components from the catalytic converter back, allowing for increased exhaust flow and enhanced sound quality. They often produce a deeper, more aggressive tone, which can amplify burbles during deceleration and shifting.
- Axle-Back Exhaust Systems: These modifications only change the muffler section of the exhaust, retaining the factory mid-pipe. While they can enhance the sound, their impact on burbles may be less pronounced compared to cat-back systems, as they primarily affect the sound output without significantly altering the exhaust flow dynamics.
- Headers: Upgrading to performance headers can drastically improve exhaust flow by reducing back pressure and improving scavenging. This increased flow can lead to more pronounced burbles due to the faster expulsion of exhaust gases, making the pops and crackles more noticeable.
- Resonators: Adding or modifying resonators can change the frequency of the exhaust note, which can enhance or dull the burble effect. A well-tuned resonator can help create a more musical sound while maintaining the desired popping characteristic during deceleration.
- Active Exhaust Systems: These systems allow for adjustable sound profiles, enabling drivers to choose between a quiet mode and a more aggressive sound. This flexibility can enhance the burble effect when switched to a sportier mode, making it easier to achieve the desired auditory experience.
Which Exhaust Systems Are Most Recommended for Burbles in the Mustang GT?
The best exhaust systems for achieving burbles in the Mustang GT include several popular options that enhance sound and performance.
- Borla Atak Exhaust System: Known for its aggressive sound, the Borla Atak system delivers a deep and throaty growl that resonates well during acceleration and deceleration.
- MagnaFlow Street Series Exhaust System: This system offers a balanced tone that is loud yet refined, creating a unique burble that is perfect for daily driving and spirited runs.
- Flowmaster Outlaw Exhaust System: The Flowmaster Outlaw is designed for maximum sound output, providing a raw and powerful exhaust note that is sure to create burbles during gear shifts.
- Roush Performance Exhaust System: With its signature Roush sound, this exhaust system not only enhances performance but also produces a distinctive burble that stands out in any crowd.
- BBK Performance Exhaust System: The BBK system is engineered for optimal flow and sound, making it an excellent choice for those looking to enhance their Mustang’s burble while also improving performance.
The Borla Atak Exhaust System is particularly favored for its high decibel level and aggressive tone, making it ideal for enthusiasts who want to make a statement. It utilizes a straight-through design, which helps in maximizing exhaust flow and performance.
The MagnaFlow Street Series Exhaust System strikes a balance between performance and sound, providing a mellow yet powerful burble. Its construction ensures longevity and resistance to corrosion, making it suitable for various driving conditions.
The Flowmaster Outlaw Exhaust System is recognized for its loud and aggressive tone. It employs a chambered design that enhances the burble effect, especially during deceleration, making it a popular choice among those seeking a track-ready sound.
The Roush Performance Exhaust System is designed with an emphasis on both aesthetics and acoustic performance. It features a unique sound profile that produces a desirable burble, particularly when downshifting, giving the Mustang GT a sporty edge.
The BBK Performance Exhaust System is tailored for enthusiasts looking to maximize both sound and efficiency. Its design allows for improved exhaust flow, resulting in a more pronounced burble while maintaining excellent performance characteristics.
What Benefits Do You Gain from Upgrading to a High-Quality Exhaust System?
Upgrading to a high-quality exhaust system can significantly enhance your Mustang GT’s performance and sound. The benefits include:
- Improved Engine Performance: A better exhaust system enhances the engine’s ability to expel exhaust gases, leading to improved horsepower and torque. This efficiency can result in a more responsive throttle and better overall performance during acceleration.
- Enhanced Sound Quality: High-quality exhaust systems are designed to produce a more aggressive and appealing sound profile, which is particularly desirable for enthusiasts seeking that burble effect. They can provide a deeper, more resonant tone that enhances the driving experience.
- Weight Reduction: Many aftermarket exhaust systems utilize lighter materials, such as stainless steel or titanium, which can reduce the overall weight of the vehicle. This weight savings contributes to better handling and performance, especially during spirited driving.
- Improved Fuel Efficiency: A well-designed exhaust system can optimize the flow of exhaust gases, which may lead to better fuel combustion. This efficiency can help with fuel economy, allowing for more miles per gallon, especially during highway driving.
- Customizability: Upgrading to a high-quality exhaust system often allows for various customization options, including different tips, styles, and sound levels. This flexibility lets drivers tailor their vehicle’s aesthetics and audio to their personal preferences.
- Increased Resale Value: Installing a high-quality exhaust system can enhance the overall appeal of your Mustang GT, making it more attractive to potential buyers. Many car enthusiasts look for performance upgrades, which can help increase resale value.
How Can You Properly Install an Exhaust System to Maximize Burbles?
To properly install an exhaust system that maximizes burbles for a Mustang GT, consider the following components:
- Cat-Back Exhaust System: A cat-back exhaust replaces the stock exhaust system from the catalytic converter back, enhancing exhaust flow and sound. By reducing back pressure, it allows for more aggressive burbles and pops, especially during deceleration.
- Resonator Delete: Removing the resonator can significantly amplify the sound, creating a more pronounced burble effect. This modification changes the exhaust tone, allowing for a raw, aggressive sound that many enthusiasts desire.
- Aftermarket Mufflers: Choosing mufflers designed for performance can influence the sound profile of the exhaust. Mufflers that promote a straight-through design will enhance the burble effect, as they allow exhaust gases to exit more freely, creating a deeper and more resonant sound.
- Exhaust Tips: The size and shape of exhaust tips can affect the sound of the burbles. Larger, more aggressive tips can help amplify the sound, while specific designs can enhance the overall tone and character of the exhaust note.
- Tuning the ECU: An ECU tune can optimize engine performance and alter exhaust timing, which can enhance the burble effect during deceleration. By adjusting fuel maps and ignition timing, a tune can create more dramatic pops and crackles.
What Should You Expect When Customizing Your Exhaust System for Enhanced Burbles?
Finally, the material quality of your exhaust components is essential for longevity and sound quality. Stainless steel is often preferred for its resistance to rust and corrosion, ensuring that your exhaust system remains in top condition and continues to produce that desired burble over the years.
What Common Issues Should You Be Aware of When Installing an Aftermarket Exhaust System?
When installing an aftermarket exhaust system, several common issues may arise that can affect performance and fitment.
- Fitment Issues: Aftermarket exhaust systems may not fit perfectly with the existing components of your Mustang GT. This can lead to leaks or misalignment, which can affect both the sound and performance of the vehicle.
- Sound Quality: Not all exhaust systems produce the desired sound. Choosing the wrong system can result in a tone that is too loud, droning at certain RPMs, or not producing the sought-after burbles, which can be disappointing for enthusiasts.
- Legal Compliance: Some aftermarket exhaust systems may not comply with local noise or emissions regulations. This could lead to fines or issues during vehicle inspections, so it’s crucial to ensure that the system you choose is street-legal in your area.
- Installation Complexity: Depending on the specific system, installation can vary from straightforward to complex, requiring special tools or skills. In some cases, professional installation may be necessary, which can add to the overall cost.
- Performance Impact: While many aftermarket systems are designed to enhance performance, some may not provide the expected gains or could even hinder performance if not properly tuned. Ensuring compatibility with the Mustang GT’s engine and tuning is essential for optimal results.
- Material Quality: The quality of materials used in the exhaust system can significantly impact durability and performance. Lower-quality materials may rust or corrode over time, leading to premature failure and requiring replacement sooner than expected.