Choosing the best car exhaust system means balancing sound, performance, and durability. The Flowmaster Outlaw stands out for aggressive sound, while the Borla S-Type offers a refined tone with impressive build quality. Many buyers face tradeoffs between loudness and daily usability or between cost and longevity. Continue reading for a detailed breakdown of the top options and what makes each unique.
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Key Takeaways
- Top picks balance sound enhancement with durability, avoiding overly loud systems that can be disruptive.
- Material quality, especially stainless steel, is key for longevity and resistance to rust and corrosion.
- Performance gains vary; some systems prioritize sound over slight horsepower improvements, so choose based on your goals.
- Installation complexity differs; some kits are plug-and-play, while others require professional fitting.
- Price ranges reflect differences in material, brand reputation, and sound tuning; paying more often yields better longevity and sound quality.
| Flowmaster FlowFX Cat-Back Exhaust System with Dual Out and Black Tips |  | Best Overall | Tubing Diameter: 2.5 inches | Material: 409 Stainless Steel | Tips: Dual 4-inch black tips | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster 17395 American Thunder Cat-Back Exhaust Kit for Chevy Silverado & GMC Sierra 1500 (1999-2007) |  | Best Value | Material: 16-gauge aluminized steel | Tubing Diameter: 3 inches | Tips: Stainless steel, polished, dual 3-inch | VIEW LATEST PRICE | See Our Full Breakdown |
| Borla 11-25 Dodge Durango 3.6L/5.7L V6/V8 2+4WD S-Type Catback Exhaust – 4.5in Ceramic Black Tips |  | Best for Performance and Style | Fitment: Dodge Durango 2011-2025 | Engine Compatibility: 3.6L V6, 5.7L V8 | Type: Catback Exhaust | VIEW LATEST PRICE | See Our Full Breakdown |
| MBRP S5148P Exhaust System |  | Best Reliable Performance | Diameter: 3 inches | Type: Cat-back exhaust system | VIEW LATEST PRICE | See Our Full Breakdown | |
| Borla 140397 Stainless Steel Cat-Back Exhaust System for Jetta 2006-2010 2.5L |  | Best for Durability and Technology | Material: Stainless Steel | Application: Jetta 2006-2010 2.5L | Technology: Multi-core | VIEW LATEST PRICE | See Our Full Breakdown |
| MagnaFlow 15588 Large Stainless Steel Performance Exhaust System Kit |  | Best Overall for Performance Enthusiasts | Material: Stainless steel | Type: Performance exhaust system | Mufflers: Straight-through | VIEW LATEST PRICE | See Our Full Breakdown |
| Magnaflow 15815 Stainless Steel 2.5″ Dual Cat-Back Exhaust System |  | Best Value for Long-Term Durability | Material: Stainless Steel | Tube Diameter: 2.5 inches | Warranty: Lifetime | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster Outlaw Cat-back Exhaust System |  | Best for Aggressive Sound and Customization | Exit Options: Dual Rear or Dual Side | Tip Size: 4.00 inches | Material: All Stainless Steel | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster American Thunder Cat-back Exhaust System |  | Best for Balanced Performance and Sound | Material: 16 gauge stainless steel | Type: Cat-back exhaust system | Sound: Moderate to aggressive | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster 717887 FlowFX Cat-back Exhaust System |  | Best for Deep Sound and Easy Installation | Tip Size: 4.50 inches | Material: Stainless Steel | Coating: Black Ceramic | VIEW LATEST PRICE | See Our Full Breakdown |
| Borla 140638 Cat-Back Exhaust System |  | Best Premium American-Made Exhaust System | Product type: Auto Part | Package dimensions: 33.02 cm L x 53.34 cm W x 167.64 cm H | Country of origin: United States | VIEW LATEST PRICE | See Our Full Breakdown |
| car exhaust system | Material |
|---|---|
| Flowmaster FlowFX Cat-Back Exh | 409 Stainless Steel |
| Flowmaster 17395 American Thun | 16-gauge aluminized steel |
| Borla 11-25 Dodge Durango 3.6L | — |
| MBRP S5148P Exhaust System | — |
| Borla 140397 Stainless Steel C | Stainless Steel |
| MagnaFlow 15588 Large Stainles | Stainless steel |
| Magnaflow 15815 Stainless Stee | Stainless Steel |
| Flowmaster Outlaw Cat-back Exh | All Stainless Steel |
| Flowmaster American Thunder Ca | 16 gauge stainless steel |
| Flowmaster 717887 FlowFX Cat-b | Stainless Steel |
| Borla 140638 Cat-Back Exhaust | — |
More Details on Our Top Picks
Flowmaster FlowFX Cat-Back Exhaust System with Dual Out and Black Tips
This Flowmaster FlowFX system stands out for its balanced blend of performance enhancement and style, making it the top choice for enthusiasts seeking a sporty upgrade. Its 2.5-inch tubing and dual outlets boost exhaust flow, translating into noticeable power gains compared to stock setups. Unlike the more aggressive Flowmaster Outlaw, the FlowFX offers a slightly more refined sound, appealing to those who want performance without excessive noise. The durable 409 stainless steel ensures longevity, but installation can be challenging for DIYers unfamiliar with exhaust work. This system is ideal for drivers who want a versatile upgrade that improves both engine response and appearance.
Pros:- Enhances exhaust flow and vehicle performance
- Durable stainless steel construction
- Stylish dual black tips for sporty appearance
Cons:- Installation may require technical skills
- May increase exhaust noise more than stock
Best for: Performance-minded car owners seeking a durable, stylish upgrade with moderate installation difficulty
Not ideal for: Casual drivers or those preferring a silent exhaust—this system increases noise and requires some mechanical skill
- Tubing Diameter:2.5 inches
- Material:409 Stainless Steel
- Tips:Dual 4-inch black tips
- Includes:Muffler, dual outlets
Our verdict“This pick is best for drivers who want a well-rounded upgrade that improves performance and style without excessive noise.”
Flowmaster 17395 American Thunder Cat-Back Exhaust Kit for Chevy Silverado & GMC Sierra 1500 (1999-2007)
Compared with the more premium Borla options, this Flowmaster American Thunder kit offers a compelling balance of performance and affordability for older pickup owners. Its 3-inch aluminized steel tubing delivers a robust, aggressive exhaust note that enhances engine sound without the premium price tag. The included hardware ensures straightforward installation, but the aluminized steel may not match the corrosion resistance of stainless steel like the Borla system. This kit is best suited for truck owners who want a noticeable power boost and a louder, more aggressive sound at a lower cost, though it may require some maintenance over time.
Pros:- Easy to install with included hardware
- Durable aluminized steel construction
- Provides an aggressive exhaust tone
Cons:- Less corrosion-resistant than stainless steel
- May require professional install for perfect fit
Best for: Chevy Silverado or GMC Sierra owners seeking a budget-friendly, performance-oriented exhaust upgrade
Not ideal for: Owners of newer vehicles or those wanting corrosion-proof stainless steel durability—aluminized steel may not last as long
- Material:16-gauge aluminized steel
- Tubing Diameter:3 inches
- Tips:Stainless steel, polished, dual 3-inch
- Application:1999-2007 Chevy Silverado & GMC Sierra 1500
- Installation:Includes hangers and hardware
Our verdict“This is ideal for budget-conscious truck owners wanting a performance boost with a louder sound.”
Borla 11-25 Dodge Durango 3.6L/5.7L V6/V8 2+4WD S-Type Catback Exhaust – 4.5in Ceramic Black Tips
This Borla S-Type exhaust elevates the Durango’s sound and performance with large 4.5-inch ceramic black tips that add a bold visual touch. Unlike the more discreet MBRP system, Borla focuses on a high-quality ceramic coating that resists heat and corrosion, making it a durable long-term upgrade. The S-Type design offers a moderate but sporty exhaust note, perfect for drivers who want a noticeable boost without excessive noise like some aftermarket options. Installation is straightforward but may be slightly more involved due to the larger tips and precise fit. It primarily suits owners who want a stylish, performance-driven upgrade that ages well over time.
Pros:- High-quality ceramic black tips for durability and appearance
- Enhances exhaust sound and engine response
- Designed for easy installation
Cons:- May be loud for some users
- Installation could be challenging for less experienced DIYers
Best for: Durango owners wanting a stylish, high-performance exhaust with a bold appearance
Not ideal for: Quiet drivers or those on a strict budget—this system emphasizes sound and style over affordability
- Fitment:Dodge Durango 2011-2025
- Engine Compatibility:3.6L V6, 5.7L V8
- Type:Catback Exhaust
- Tips:4.5-inch Ceramic Black
Our verdict“This system is best for Durango owners seeking a durable, stylish upgrade that improves both sound and performance.”
MBRP S5148P Exhaust System
The MBRP S5148P offers a straightforward 3-inch diameter cat-back setup, making it a reliable choice for those who want a consistent performance upgrade without fuss. Its simple design focuses on improving exhaust flow and sound, comparable to the more versatile Flowmaster FlowFX but at a potentially lower cost. While it may lack some of the more refined finishes of stainless steel systems, its durability and performance are well-suited for drivers who prioritize function over form. The main tradeoff is that installation might be tricky for those unfamiliar with exhaust work, and the louder exhaust sound could be a concern for some users.
Pros:- Enhances vehicle performance
- Durable construction
- Improves exhaust sound
Cons:- Installation may require technical skills
- Potentially loud for everyday driving
Best for: Owners looking for a dependable, easy-to-upgrade exhaust system that boosts performance
Not ideal for: Drivers seeking a quiet or highly polished appearance—this system emphasizes durability and function over aesthetics
- Diameter:3 inches
- Type:Cat-back exhaust system
Our verdict“This is suited for drivers who want a simple, reliable upgrade that offers performance gains without premium price or appearance concerns.”
Borla 140397 Stainless Steel Cat-Back Exhaust System for Jetta 2006-2010 2.5L
This Borla Jetta system emphasizes durability with its stainless steel construction and incorporates multi-core technology to optimize exhaust flow. Its double round rolled angle cut tips add a refined, stylish touch, setting it apart from more basic systems like the Flowmaster FlowFX. While it offers excellent corrosion resistance and performance improvements, the installation can be complex for inexperienced DIYers. It’s best suited for owners who want a long-lasting, technologically advanced upgrade that enhances both power and style, especially if they value durability in their daily driver.
Pros:- Durable stainless steel construction
- Enhanced exhaust performance
- Multi-core technology for better flow
Cons:- Installation may require technical skills
- Can be loud at high RPMs
Best for: Jetta owners seeking a durable, high-tech exhaust upgrade that lasts long and improves flow
Not ideal for: Casual users or those with limited mechanical skills—installation may be challenging and noise could be loud at high RPMs
- Material:Stainless Steel
- Application:Jetta 2006-2010 2.5L
- Technology:Multi-core
- Design:Double round rolled angle cut
Our verdict“This system fits owners who prioritize longevity and tech features for a high-performance, stylish upgrade.”
MagnaFlow 15588 Large Stainless Steel Performance Exhaust System Kit
This MagnaFlow kit stands out for its combination of durable stainless steel construction and mandrel-bent tubing, which together deliver a noticeable boost in engine performance and sound quality. Compared with the Flowmaster Outlaw, it offers a more refined tone but may be louder than some users prefer. Its straight-through mufflers maximize airflow, making it ideal for those seeking a significant power increase. The main tradeoff is that installation can be technically demanding, especially for DIYers. If you want an exhaust system that balances performance with robust durability, this choice excels.
Pros:- High durability due to stainless steel construction
- Mandrel-bent tubing improves exhaust flow and performance
- Enhances sound quality with a sporty tone
Cons:- Requires some technical skill for installation
- Can be quite loud, which may not suit all drivers
Best for: Performance-focused car owners who are comfortable with moderate installation complexity
Not ideal for: Casual drivers looking for an easy upgrade, as installation may require advanced skills
- Material:Stainless steel
- Type:Performance exhaust system
- Mufflers:Straight-through
- Tubing:Mandrel bent
Our verdict“This system is perfect for enthusiasts prioritizing durability and performance, despite its installation complexity.”
Magnaflow 15815 Stainless Steel 2.5″ Dual Cat-Back Exhaust System
This Magnaflow system makes a strong case for durability with its heavy-duty stainless steel build and a lifetime warranty. Unlike the Flowmaster American Thunder, which emphasizes maximum performance tuning, this system focuses on longevity and consistent quality. Its 2.5-inch tubes help reduce heat and back pressure, improving engine efficiency over time. However, the fitment is limited to specific vehicle models, and installation can be complex for those without mechanical experience. For drivers seeking a long-lasting upgrade that backs performance with warranty security, this system is a reliable choice.
Pros:- Stainless steel construction ensures longevity
- Reduces engine heat and back pressure
- Backed by a lifetime warranty
Cons:- Compatibility limited to certain vehicle models
- Installation may be technically demanding
Best for: Long-term owners wanting durability and warranty-backed quality
Not ideal for: Owners of non-specified vehicle models looking for universal fit and easier installation
- Material:Stainless Steel
- Tube Diameter:2.5 inches
- Warranty:Lifetime
Our verdict“Ideal for those prioritizing durability and warranty coverage over universal fit or ease of installation.”
Flowmaster Outlaw Cat-back Exhaust System
The Flowmaster Outlaw offers a deep, aggressive exhaust note, making it stand out for drivers who want a loud, attention-grabbing sound. Its dual outlet options and large ceramic-coated tips provide customization, unlike the more straightforward American Thunder system. Made from stainless steel, it also promises durability, but the loud tone may not appeal to everyone—especially those seeking a quieter ride. Installation is straightforward with factory hanger compatibility, but some mechanical skill could be beneficial for optimal fit. If you crave an unmistakably aggressive sound and visual flair, this system delivers.
Pros:- Deep, aggressive exhaust tone
- Multiple exit options for customization
- Durable stainless steel construction
Cons:- Potentially too loud for daily driving
- May require mechanical skill for perfect fit
Best for: Performance drivers who want a bold sound and visual customization
Not ideal for: Casual drivers or those sensitive to loud exhaust notes
- Exit Options:Dual Rear or Dual Side
- Tip Size:4.00 inches
- Material:All Stainless Steel
- Warranty:Lifetime Limited
Our verdict“Best suited for drivers seeking a loud, aggressive sound with visual customization options.”
Flowmaster American Thunder Cat-back Exhaust System
This dyno-tuned system emphasizes a balance between performance and sound, providing a moderate to aggressive tone that appeals to a broad audience. It uses mandrel-bent 16-gauge stainless steel tubing, which supports consistent durability and performance gains. Compared with the Flowmaster Outlaw, it offers a less aggressive sound but still delivers a satisfying exhaust note. The inclusion of hangers and hardware simplifies installation, making it accessible for DIY enthusiasts. For those who want a proven performance upgrade without the extreme noise, this model makes the most sense.
Pros:- Dyno-tuned for maximum performance
- Moderate to aggressive sound suitable for daily use
- Easy installation with included hardware
Cons:- Sound may be too aggressive for some preferences
- Price information not always clear
Best for: Drivers seeking a well-rounded exhaust system with a moderate sound level
Not ideal for: Those looking for an extremely loud exhaust or maximum aggressive tone
- Material:16 gauge stainless steel
- Type:Cat-back exhaust system
- Sound:Moderate to aggressive
- Installation:Includes hangers and hardware
Our verdict“A solid choice for drivers wanting a performance-focused exhaust with balanced sound and ease of installation.”
Flowmaster 717887 FlowFX Cat-back Exhaust System
The Flowmaster FlowFX offers a deep, powerful exhaust tone thanks to its large 4.50-inch black ceramic-coated tip and full stainless steel build. Its mandrel-bent tubing supports performance gains, yet its installation process is straightforward enough for most DIYers, thanks to factory hanger compatibility. Compared with the Outlaw, it provides a less aggressive but still commanding sound profile, making it suitable for drivers who want power without excessive noise. The lifetime warranty adds peace of mind, but the large tip size may require careful fitting and potentially professional assistance for the best result. For those who want a deep rumble with hassle-free installation, this system hits the mark.
Pros:- Deep and powerful sound
- Large ceramic-coated tip adds visual appeal
- Easy and quick to install
Cons:- May require professional fitting for perfect alignment
- Potentially loud for daily drivers who prefer quieter rides
Best for: Enthusiasts wanting a deep, powerful exhaust tone with simple installation
Not ideal for: Drivers seeking a subtle or quiet exhaust upgrade
- Tip Size:4.50 inches
- Material:Stainless Steel
- Coating:Black Ceramic
- Type:Cat-back exhaust system
Our verdict“A great choice for those desiring a deep, powerful sound with straightforward installation and durability.”
Borla 140638 Cat-Back Exhaust System
The Borla 140638 stands out for its high-quality craftsmanship, being made in the United States, which appeals to buyers seeking durability and pride in manufacturing. Compared to the MagnaFlow kits, which often offer more balanced pricing, Borla emphasizes performance and build quality, but its heavy weight (64 lbs) can complicate installation and may require additional support. This exhaust system is ideal for enthusiasts eager to enhance their vehicle’s sound and power, especially those who value American manufacturing. However, it might be overkill for casual drivers or those on a tight budget, as the premium price and installation considerations may not justify the performance gains for everyday use.
This pick makes the most sense for performance-focused owners who prioritize durability and American craftsmanship, willing to handle a heavier system.
Pros:- Made in the United States with high-quality craftsmanship
- Designed to improve exhaust flow and vehicle performance
- Durable stainless steel construction enhances longevity
- Potentially increases horsepower and sound quality
Cons:- Heavy weight may require reinforced mounting or special installation
- Lacks detailed performance specifications or compatibility info
- Premium price point might be prohibitive for some
Best for: Performance enthusiasts and owners seeking a durable, American-made upgrade who prioritize craftsmanship and sound quality.
Not ideal for: Casual drivers or budget-conscious buyers who prefer lighter, more affordable options with simpler installation.
- Product type:Auto Part
- Package dimensions:33.02 cm L x 53.34 cm W x 167.64 cm H
- Country of origin:United States
- Package weight:64.0 lbs
Our verdict“This system is best suited for performance-minded owners who value build quality and American manufacturing, accepting extra weight and cost.”
How We Picked
I evaluated these exhaust systems based on a combination of performance, build quality, user reviews, and versatility. Priority was given to systems that deliver noticeable sound and performance gains without excessive complexity in installation. Durability, especially resistance to rust, was also a key factor, along with value for money. The ranking reflects a balance between premium features and practical usability, ensuring options suit both casual enthusiasts and performance seekers.Factors to Consider When Choosing Best Car Exhaust Systems
When selecting the best car exhaust system, it’s important to consider several factors that impact performance, sound, and longevity. Understanding these can help avoid common pitfalls like choosing overly loud or fragile systems that don’t match your driving habits or vehicle. The right exhaust system should complement your car’s design, your sound preferences, and your budget, so weighing these considerations carefully is essential.Sound Level and Tone
Deciding how loud and aggressive you want your exhaust to sound is fundamental. Some systems, like the Flowmaster Outlaw, deliver a deep, aggressive tone that can be too loud for daily driving, while others, like Borla’s S-Type, offer a more refined, sporty sound. Consider your noise tolerance and local regulations—loud exhausts can attract unwanted attention or be illegal in some areas.
Material and Durability
Stainless steel is the gold standard for durability, resisting rust and corrosion even under harsh conditions. Cheaper materials may save money upfront but tend to degrade faster, leading to costly replacements. If you plan to keep your vehicle long-term or drive in salty or wet environments, investing in high-quality materials pays off.
Performance Gains
While some exhaust systems primarily enhance sound, others also improve horsepower and torque. Look for systems with good flow characteristics and fewer restrictions if you aim for performance improvements. Be mindful that not all upgrades deliver noticeable gains, especially on naturally aspirated engines, so match your expectations accordingly.
Ease of Installation
Some exhaust kits are designed for DIY installation, featuring bolt-on components that fit directly into existing mounts. Others might require welding or professional tuning, increasing costs and complexity. If you’re not experienced, selecting a system with straightforward installation can save time and money.
Cost and Value
Higher-priced systems often provide better materials, sound tuning, and performance, but that isn’t always necessary for casual drivers. Balance your budget with your goals—if you seek a noticeable upgrade and longevity, investing more makes sense. Conversely, budget options may serve well for temporary or casual use but might need replacing sooner.
Frequently Asked Questions
Will a louder exhaust system make my car faster?
Not necessarily. Many exhaust systems designed for increased sound output improve airflow, which can marginally boost performance, but the primary benefit is a more aggressive tone. True horsepower gains depend on the system’s ability to reduce backpressure without restricting flow. For significant performance improvements, consider systems specifically engineered for performance rather than just loudness.
Is stainless steel worth the extra cost for my exhaust system?
Absolutely. Stainless steel resists rust and corrosion far better than aluminized or mild steel, extending the lifespan of your exhaust. If you live in a salty climate or plan to keep your car for many years, investing in stainless steel can save money over time by avoiding frequent replacements. For short-term or budget builds, less expensive materials might suffice, but they typically require more maintenance.
Can I install a performance exhaust system myself?
Many systems are designed for DIY installation, especially bolt-on cat-back kits that fit directly onto your existing exhaust. However, some may require specialized tools, welding, or adjustments, making professional installation advisable. Always check the installation instructions and your mechanical skill level before attempting a swap, as improper installation can lead to leaks or damage.
Will a new exhaust system affect my vehicle’s warranty?
This depends on your manufacturer and local laws. Some warranties may be voided if the exhaust upgrade alters emissions controls or other critical components. To avoid issues, choose systems compliant with local regulations and keep documentation of installations. Consulting your vehicle’s warranty policy before upgrading is a wise step.
What should I prioritize: sound, performance, or durability?
It depends on your driving goals. If you want a signature sound and a sporty feel, prioritize sound and aesthetics. For daily drivers, durability and reliability might matter more, so selecting high-quality materials is key. Balancing these factors ensures your exhaust system meets your expectations while providing long-term value.
