When searching for the best car exhaust systems, drivers seek a blend of performance, sound, and durability. The Flowmaster Outlaw stands out for its aggressive tone and high-flow design, while the Borla Stainless Steel System for Jetta offers a sleek, durable option for European models. The main tradeoffs involve balancing sound levels, installation complexity, and budget constraints. Continue reading for a detailed breakdown of these top picks and how they compare across key factors.
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Key Takeaways
- Performance differences among systems are often linked to material quality and design, affecting durability and sound tuning.
- Top-rated exhausts balance aggressive sound with daily usability, avoiding excessive drone or noise complaints.
- Price varies significantly, with premium options offering better materials and sound customization, but at higher costs.
- Installation complexity varies; some systems are straightforward bolt-ons, while others require custom modifications.
- Material choice, especially stainless steel, directly impacts lifespan and corrosion resistance over time.
| 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 |
| Flowmaster Outlaw Cat-back Exhaust System |  | Best for Deep, Aggressive Sound | Exit Options: Dual Rear or Dual Side | Tip Size: 4.00 inches | Material: All Stainless Steel | 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 Performance | 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 for Power and Sound Quality | Material: Stainless Steel | Type: Performance exhaust system | Mufflers: Straight-through | 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 Overall for Dodge Durango Enthusiasts | Fitment: Dodge Durango 2011-2025 | Engine Compatibility: 3.6L V6, 5.7L V8 | Type: Catback Exhaust | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster 717887 FlowFX Cat-back Exhaust System |  | Best for Deep, Powerful Sound and Durability | Tip Size: 4.50 inches | Material: Stainless Steel | Coating: Black Ceramic | VIEW LATEST PRICE | See Our Full Breakdown |
| MBRP S5148P Exhaust System |  | Best for Reliable Performance and Simplicity | Diameter: 3 inches | Type: Cat-back exhaust system | VIEW LATEST PRICE | See Our Full Breakdown | |
| Magnaflow 15815 Stainless Steel 2.5″ Dual Cat-Back Exhaust System |  | Best for Heat Reduction and Long-Term Durability | Material: Stainless Steel | Tube Diameter: 2.5 inches | Warranty: Lifetime | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster American Thunder Cat-back Exhaust System |  | Best for Maximum Performance and Moderate Sound | Material: 16 gauge stainless steel | Type: Cat-back exhaust system | Sound: Moderate to aggressive | VIEW LATEST PRICE | See Our Full Breakdown |
| Borla 140638 Cat-Back Exhaust System |  | Best for High-Quality American Craftsmanship | 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 |
| Flowmaster Outlaw Cat-back Exh | All Stainless Steel |
| Borla 140397 Stainless Steel C | Stainless Steel |
| MagnaFlow 15588 Large Stainles | Stainless Steel |
| Borla 11-25 Dodge Durango 3.6L | — |
| Flowmaster 717887 FlowFX Cat-b | Stainless Steel |
| MBRP S5148P Exhaust System | — |
| Magnaflow 15815 Stainless Stee | Stainless Steel |
| Flowmaster American Thunder Ca | 16 gauge 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
The Flowmaster FlowFX stands out for its balance of style, durability, and performance enhancement. Constructed from 409 stainless steel, it offers a sporty look with black tips, making it ideal for drivers seeking both aesthetics and reliability. Compared with the MagnaFlow 15588, the FlowFX provides a slightly louder but less refined sound, appealing to those who want more aggressive tone without sacrificing durability. Its 2.5-inch tubing improves exhaust flow, boosting overall vehicle performance. However, installation can be challenging for those without mechanical skills, and the increased noise level might not suit everyone. This pick makes the most sense for enthusiasts who want a durable, stylish upgrade that enhances sound and performance without extensive customization.
Pros:- Enhances exhaust flow and vehicle performance
- Durable 409 stainless steel construction
- Sporty black tips improve aesthetic appeal
Cons:- Installation may require advanced mechanical skills
- Increases exhaust noise, which could be loud for some
Best for: Performance-oriented car owners who want a durable, stylish system with a sporty sound.
Not ideal for: Casual drivers seeking a silent or near-silent exhaust upgrade or those uncomfortable with complex installation.
- Tubing Diameter:2.5 inches
- Material:409 Stainless Steel
- Tips:Dual 4-inch black tips
- Includes:Muffler, dual outlets
Our verdict“This system suits drivers seeking a durable, performance-focused upgrade with a sporty appearance and sound.”
Flowmaster 17395 American Thunder Cat-Back Exhaust Kit for Chevy Silverado & GMC Sierra 1500 (1999-2007)
The Flowmaster American Thunder kit offers a compelling combination of affordability and performance. Its 16-gauge aluminized steel tubing is less durable than stainless steel but still provides decent longevity at a lower cost. Compared with the MagnaFlow 15588, it emphasizes a more aggressive exhaust tone, making it ideal for trucks that benefit from a louder, more commanding sound. The 3-inch tubing ensures good exhaust flow, and the included hardware makes installation straightforward for those with some mechanical skill. However, aluminized steel’s limited corrosion resistance means it may not last as long as stainless steel systems, especially in harsh climates. This kit makes the most sense for budget-conscious owners who want a performance boost and a louder tone without premium price tags.
Pros:- Cost-effective compared to stainless steel options
- Easy to install with included hardware
- Enhanced aggressive exhaust tone
Cons:- Aluminized steel may corrode faster in harsh environments
- May require professional tuning for optimal fit
Best for: Budget-minded truck owners who want a noticeable performance and sound upgrade.
Not ideal for: Owners seeking long-term corrosion resistance or a completely quiet exhaust system.
- 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“Ideal for budget-conscious truck owners wanting a robust, aggressive sound and improved performance without high costs.”
Flowmaster Outlaw Cat-back Exhaust System
The Flowmaster Outlaw is designed for drivers who crave a truly deep, aggressive exhaust note. Made entirely of stainless steel, it guarantees durability and longevity, similar to the MagnaFlow 15588, but with a focus on louder, more commanding sound. Its dual outlet options and 4-inch tips allow for customization, making it versatile for different aesthetic preferences. Installation is straightforward thanks to factory hanger compatibility, but the loudness might be overwhelming for those seeking a subtler experience. Compared to other high-performance systems, the Outlaw emphasizes sound and durability over subtlety or mild tone. This system makes perfect sense for enthusiasts who want their vehicle to produce a deep growl at high RPMs and are comfortable with increased noise levels.
Pros:- Deep, aggressive exhaust tone
- All stainless steel for durability
- Multiple exit options for customization
- Easy to install with factory hangers
Cons:- May be excessively loud for some users
- Installation could be challenging for less experienced DIYers
Best for: Performance enthusiasts who prioritize a loud, aggressive sound and durable stainless steel construction.
Not ideal for: Daily drivers or those sensitive to loud exhaust noise looking for a more refined tone.
- Exit Options:Dual Rear or Dual Side
- Tip Size:4.00 inches
- Material:All Stainless Steel
- Warranty:Lifetime Limited Warranty
Our verdict“This exhaust system is best suited for drivers who want a loud, durable system with a commanding sound profile.”
Borla 140397 Stainless Steel Cat-Back Exhaust System for Jetta 2006-2010 2.5L
The Borla 140397 is tailored for Jetta owners who value a combination of durability and performance. Its stainless steel construction ensures longevity comparable to the MagnaFlow 15588, with the added benefit of advanced multi-core technology that improves exhaust flow. The double round rolled angle cut design is both functional and aesthetic, providing a sleek finish. While installation may require some technical skill, its performance gains and robust build make it worth the effort. Compared to systems like the Flowmaster FlowFX, the Borla emphasizes efficiency and durability, but it may be louder at high RPMs. It is ideal for those who want a reliable upgrade that enhances engine performance and lasts through years of driving.
Pros:- Durable stainless steel construction
- Enhanced exhaust performance
- Multi-core technology improves flow
- Sleek, double round rolled angle cut design
Cons:- Installation can be technically demanding
- May produce louder sound at high RPMs
Best for: Jetta owners seeking a durable, high-performance exhaust upgrade with a focus on longevity.
Not ideal for: Owners who prefer a plug-and-play solution or are uncomfortable with technical installation.
- Material:Stainless Steel
- Application:Jetta 2006-2010 2.5L
- Technology:Multi-core
- Design:Double round rolled angle cut
Our verdict“This system is ideal for Jetta owners who prioritize durability and performance in their exhaust upgrade.”
MagnaFlow 15588 Large Stainless Steel Performance Exhaust System Kit
The MagnaFlow 15588 offers a straightforward approach to boosting power and sound. Its mandrel-bent tubing and straight-through mufflers optimize exhaust flow, which translates into increased horsepower and a more refined sound. Comparing to the Flowmaster FlowFX, MagnaFlow leans toward a smoother, less aggressive tone that appeals to drivers seeking a performance upgrade without excessive noise. Its stainless steel build guarantees durability, though installation may require some mechanical skill. The system’s emphasis on flow efficiency makes it excellent for those who want a noticeable power increase paired with a balanced sound profile. However, it may be loud at high RPMs, so those seeking a quieter experience might look elsewhere. Overall, this kit is ideal for power enthusiasts who want a reliable, high-quality exhaust upgrade that improves both sound and performance.
Pros:- Mandrel-bent tubing for improved flow
- Straight-through mufflers enhance power
- Durable stainless steel construction
Cons:- Installation may be technically challenging
- Loud at high RPMs for some users
Best for: Performance drivers who desire a balanced, smooth exhaust note with increased power and durability.
Not ideal for: Casual drivers or those seeking a quiet, subtle exhaust system.
- Material:Stainless Steel
- Type:Performance exhaust system
- Mufflers:Straight-through
- Tubing:Mandrel bent
Our verdict“This system is perfect for performance-focused drivers wanting a durable, power-enhancing exhaust with a refined 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 stands out for its balance of performance and style, especially for Dodge Durango owners seeking a noticeable boost in exhaust sound and a sleek look. Compared to the Flowmaster 717887, it offers a more refined tone and a high-quality ceramic black tip that resists discoloration, though it may produce a louder exhaust note that some might find excessive. Its design prioritizes compatibility with Durango models from 2011 to 2025, making it a versatile choice. The main tradeoff is that installation can be tricky for those without mechanical skills, and the louder sound might not suit every driver. This pick makes the most sense for Durango owners who want a durable, stylish upgrade that enhances both sound and appearance.
Pros:- Enhances exhaust sound and vehicle performance
- High-quality ceramic black tips resist discoloration
- Designed for straightforward installation
Cons:- May be louder than some drivers prefer
- Installation could be challenging for beginners
Best for: Durango owners who desire a high-performance, stylish exhaust to improve both sound and aesthetic appeal
Not ideal for: Casual drivers seeking a quiet ride or those with limited mechanical skills for installation
- 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 ideal for Durango owners wanting a durable, stylish upgrade with a bold sound.”
Flowmaster 717887 FlowFX Cat-back Exhaust System
This Flowmaster FlowFX system excels with its deep, commanding exhaust tone, making it a top choice for drivers seeking a more aggressive sound. Its stainless steel construction with black ceramic coating ensures durability, comparable to the Magnaflow 15815, but with a more pronounced exhaust note. The 4.50-inch tip adds visual appeal, while the mandrel-bent tubing promotes smooth exhaust flow. The main drawback is that it might be too loud for daily commuting or those who prefer subtlety, and professional installation is recommended to ensure perfect fit. This system makes the most sense for enthusiasts craving a loud, durable exhaust with a focus on sound quality.
Pros:- Deep, commanding exhaust sound
- Full stainless steel with ceramic coating for durability
- Easy to install with included hardware
Cons:- Potentially too loud for daily use
- May require professional installation for best fit
Best for: Performance-oriented drivers who want a loud, durable exhaust system with a deep tone
Not ideal for: Commuters or those sensitive to noise who prefer a quieter ride
- Tip Size:4.50 inches
- Material:Stainless Steel
- Coating:Black Ceramic
- Type:Cat-back Exhaust System
Our verdict“This system is perfect for drivers chasing a bold, aggressive exhaust sound and long-term durability.”
MBRP S5148P Exhaust System
The MBRP S5148P is a straightforward 3-inch cat-back system designed for reliable, proven performance. Unlike the Magnaflow 15815, which emphasizes heat reduction and durability, this MBRP model is more about ease of installation and consistent flow improvements. Its simple design suits owners who want a moderate upgrade without overly aggressive sound or complicated setup. The main tradeoff is that it may not deliver as much tone or performance gain as more specialized systems, and installation might still challenge DIYers. This pick makes the most sense for everyday drivers seeking dependable performance with a straightforward install.
Pros:- Reliable performance enhancement
- Durable construction
- Easy to install for experienced DIYers
Cons:- Less aggressive sound profile
- May require technical skills for installation
Best for: Daily drivers seeking a reliable, easy-to-install exhaust upgrade for improved flow
Not ideal for: Performance enthusiasts wanting maximum sound or power gains
- Diameter:3 inches
- Type:Cat-back exhaust system
Our verdict“This system suits drivers needing a dependable, no-frills exhaust upgrade for everyday reliability.”
Magnaflow 15815 Stainless Steel 2.5″ Dual Cat-Back Exhaust System
This Magnaflow system, with its 2.5-inch dual tubes, is tailored for drivers focused on reducing engine heat and back pressure, which can improve overall performance. Compared to the Flowmaster 717887, it offers a more subdued, refined tone suitable for those who prefer a balanced sound. Its heavy-duty stainless steel build provides excellent longevity, backed by a lifetime warranty. However, its compatibility is limited to specific vehicle models, which can complicate fitment for some buyers. The installation process may also demand technical skill. This system is best for those prioritizing engine longevity and heat management over aggressive sound or maximum horsepower.
Pros:- Reduces engine heat and back pressure
- Heavy-duty stainless steel for durability
- Backed by a lifetime warranty
Cons:- Model-specific fitment required
- Installation can be complex for some users
Best for: Owners seeking a durable, heat-reducing exhaust system with long-term warranty coverage
Not ideal for: Performance junkies looking for loud, aggressive sound or maximum power gains
- Material:Stainless Steel
- Tube Diameter:2.5 inches
- Warranty:Lifetime
Our verdict“This system is ideal for owners prioritizing engine health and long-term durability over sound and performance gains.”
Flowmaster American Thunder Cat-back Exhaust System
The Flowmaster American Thunder system is dyno-tuned for peak performance, making it ideal for drivers who want a balanced mix of power and a moderate, aggressive exhaust tone. Its mandrel-bent 16-gauge stainless steel tubing ensures durability, comparable to the Flowmaster 717887 but with a sound that’s less extreme. The included hardware simplifies installation, appealing to those with some mechanical skill. Its main drawback is that the sound, while moderate to aggressive, might be too intense for drivers craving a subtle exhaust. Also, price details are less transparent. This system is best for performance-minded drivers who want a reliable, powerful exhaust with a balanced tone.
Pros:- Dyno-tuned for maximum power
- Includes hardware for easy installation
- Durable stainless steel construction
Cons:- Sound may be too aggressive for some
- Price details are not always clear
Best for: Performance enthusiasts seeking a dyno-tuned system with a moderate, aggressive sound
Not ideal for: Those wanting a quiet or stealthy exhaust setup
- Material:16 gauge stainless steel
- Type:Cat-back exhaust system
- Sound:Moderate to aggressive
Our verdict“This exhaust suits drivers looking for a performance upgrade that balances power with a manageable exhaust tone.”
Borla 140638 Cat-Back Exhaust System
The BORLA 140638 stands out for its American-made quality, offering a level of craftsmanship that few competitors like the Flowmaster American Thunder can match. While it excels in durability and a polished finish, it lacks detailed performance specs, making it less ideal for those seeking precise power gains. Its weight of 64 lbs could pose installation challenges compared to lighter systems like MagnaFlow’s stainless steel kits. The design emphasizes build quality and a refined sound, but without specific tuning details, some may find it less tailored for performance upgrades. This exhaust is best suited for enthusiasts valuing American manufacturing and a premium build, rather than those needing a highly customizable or lightweight setup.
Pros:- Made in the United States with high-quality craftsmanship
- Designed to improve exhaust flow and durability
- Polished finish for a premium look
Cons:- Heavy weight of 64 lbs may complicate installation
- Lacks specific performance or compatibility details
- No tuning or sound customization options provided
Best for: Car owners who prioritize American craftsmanship and durable build quality over detailed performance specs.
Not ideal for: Performance-focused tuners seeking precise power gains or lightweight setups, as the heavy weight may hinder installation and the lack of detailed specs offers limited tuning potential.
- 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 pick is ideal for buyers valuing American-made quality and sturdy construction over detailed performance customization.”
How We Picked
Each exhaust system was evaluated based on performance gains, sound quality, build materials, ease of installation, and value for money. We prioritized products that have a proven track record for durability and customer satisfaction, highlighting those suited for both daily drivers and enthusiasts. Our ranking considers how well each system balances these factors, ensuring buyers can find options that meet different needs and budgets.Factors to Consider When Choosing Best Car Exhaust Systems
Choosing the right car exhaust system involves more than just horsepower and sound. It’s essential to consider how the material quality affects longevity, especially if you live in areas with harsh weather. Ease of installation can save time and additional costs, so assess whether you need professional help or can do it yourself. Price points vary, but investing in a durable, well-designed system often pays off in the long run. Finally, think about the sound level you prefer—some systems deliver a deep growl, while others remain more subdued for daily driving.Material Quality and Durability
High-quality stainless steel, especially T304 or T409 grades, resists corrosion and maintains appearance over time. Cheaper materials may rust or degrade faster, leading to costly replacements. If you live in coastal or snowy regions, prioritizing corrosion-resistant materials can extend your exhaust’s lifespan significantly.
Sound and Performance Balance
While a louder exhaust can boost your vehicle’s aggressive tone, it could also lead to noise complaints or drone issues during highway cruising. Consider systems with adjustable sound levels or quieter modes if daily comfort matters. Performance gains are often tied to free-flowing designs, but these can sometimes increase noise more than expected.
Ease of Installation
Some systems are designed as direct bolt-ons, suitable for DIY installation, saving money and time. Others may require cutting, welding, or professional help. Think about your mechanical skills and whether you’re comfortable with complex tasks before choosing a system that demands customization.
Price and Long-Term Value
Premium systems often feature better materials, sound tuning, and warranty coverage, but come at a higher price. Cheaper options might fit tight budgets but may need replacement sooner. Consider the total cost of ownership, including potential maintenance or replacement costs down the line.
Legal Considerations
Ensure the exhaust system complies with local noise and emissions regulations. Some high-performance exhausts may be illegal in certain areas or require special permits. Always verify compatibility with your vehicle model and local laws to avoid fines or inspections.
Frequently Asked Questions
Will installing a new exhaust system improve my vehicle’s horsepower?
Replacing your stock exhaust with a performance-oriented system can improve horsepower and torque by reducing backpressure and increasing airflow. However, the actual gains vary depending on your vehicle’s make and model, as well as other modifications like tuning or intake upgrades. For some cars, gains might be modest, while others may see a noticeable increase. It’s important to match the exhaust choice with your overall performance goals to get meaningful results.
How loud will my car be after installing a performance exhaust?
The loudness depends on the specific system and its sound design. Some exhausts, like the Flowmaster Outlaw, are intentionally loud and aggressive, ideal for enthusiasts seeking a roar. Others, such as Borla systems with resonators, aim for a deeper tone without excessive noise. Consider your daily driving environment; if you prefer a more subtle sound, look for systems with adjustable sound levels or quieter configurations.
Is stainless steel worth the extra cost for my exhaust system?
Stainless steel offers superior resistance to rust and corrosion, extending the life of your exhaust significantly. While initial costs are higher, stainless steel systems often require less maintenance and replacement over time, making them a better investment for many drivers. If you live in an area with harsh weather or salted roads, stainless steel can prevent premature deterioration and save money in the long run.
Can I install a performance exhaust on my own, or do I need a professional?
Many bolt-on systems are designed for straightforward installation and can be handled by someone with basic mechanical skills. However, some systems may require cutting, welding, or additional modifications, making professional installation advisable. If you lack experience or the tools, hiring a professional can ensure proper fitment and avoid potential damage or leaks.
Will a new exhaust system affect my vehicle’s emissions or legality?
Performance exhausts can sometimes alter emissions or noise levels beyond legal limits. It’s important to check local regulations before installation, especially if your vehicle is subject to emissions testing or noise restrictions. Some systems are designed to be emissions-compliant and street-legal, so verify product specifications and consult local laws to avoid penalties or issues during inspections.
Conclusion
The best overall pick for most drivers remains the Flowmaster Outlaw for its aggressive sound and strong performance. For those seeking the best value, the MagnaFlow Stainless Steel Kit offers durable construction at a reasonable price. If you want a premium upgrade, the Borla Stainless Steel System for Jetta excels in materials and craftsmanship. Beginners or DIY enthusiasts should consider systems that are direct bolt-ons, like some Flowmaster options, to save on installation costs. Finally, if your focus is on a specific vehicle or sound profile, tailored options like the Dodge Durango Borla system can meet those needs effectively. Choosing the right system depends on your priorities—performance, sound, durability, or budget—so weigh these factors carefully before making a decision.
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