Choosing the best cat-back exhaust system for your Dodge Charger R/T can significantly enhance engine sound, performance, and aesthetics. The Borla 14872 stands out as the overall top pick for its balanced blend of power gains and refined sound. For those seeking a bold roar, the Flowmaster American Thunder offers a classic muscle car tone, though it may trade some daily comfort for volume. Another strong contender is the BORLA 140686, which delivers impressive performance with a more subtle tone. The main challenge is balancing sound preferences with installation complexity and budget constraints. Keep reading for a detailed breakdown to find the perfect fit for your Charger R/T.
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Key Takeaways
- The top picks balance performance gains with sound quality, with Borla leading for refined power and Flowmaster for aggressive tone.
- Material quality varies, but stainless steel options tend to offer longer-lasting durability with less corrosion.
- Installation ease is a common factor; some systems are plug-and-play, while others require welding or professional setup.
- Price ranges significantly, with premium systems offering the best durability and sound, but good value options still deliver notable upgrades.
- Sound volume and tone preferences are highly subjective; louder isn’t always better for daily drivers, so consider your tolerance and surroundings.
| Borla 14872 Cat-Back Exhaust System |  | Best Overall for Longevity and Signature Sound | Material Type: T-304 Stainless Steel | Construction: All welded | Pipe Diameter: Not specified | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster 717830 FlowFX Cat-Back Exhaust Kit – 2.5 Inch 409 Stainless Steel, Fits 2015-2016 Dodge Challenger R/T 5.7L Hemi |  | Best for Performance Enthusiasts on Challenger R/T | Pipe Diameter: 2.5 inches | Material: 409 Stainless Steel | Vehicle Fitment: 2015-2016 Challenger R/T 5.7L Hemi | VIEW LATEST PRICE | See Our Full Breakdown |
| BORLA 140686 Cat-Back Performance Exhaust System for 2015-2023 Dodge Charger V6 & Chrysler 300 V6 |  | Best for Budget-Friendly Long-Term Performance | Material: T-304 Stainless Steel | Construction: All welded | Vehicle Fitment: 2015-2023 Dodge Charger V6 & Chrysler 300 V6 | VIEW LATEST PRICE | See Our Full Breakdown |
| Borla 140851 Cat-Back Exhaust System |  | Best for Wide Compatibility and Simplicity | Material: Stainless Steel | Exhaust Type: Cat-Back | Number of Outlets: Single | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster 817674 American Thunder Cat-back Exhaust System |  | Best for Classic Sound and Off-Road Capability | System Type: Cat-back | Technology: Super HP2 laminar flow | Material: Stainless Steel | VIEW LATEST PRICE | See Our Full Breakdown |
| Flowmaster 817895 American Thunder Cat-Back Exhaust System |  | Best Overall for Balanced Performance and Sound | Brand: Flowmaster | Model Number: 817895 | Tubing Diameter: 3 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| SLP Loud Mouth Cat-Back Exhaust System with 4″ Tips for 2005-2014 Dodge Charger SRT-8 |  | Best for Loud, Show-Ready Sound | Brand: SLP Performance | Fitment: 2005-2014 Dodge Charger SRT-8 | Tip Size: 4 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| cat-back exhaust systems for Dodge Charger R/T | Material | Warranty |
|---|---|---|
| Borla 14872 Cat-Back Exhaust S | — | — |
| Flowmaster 717830 FlowFX Cat-B | 409 Stainless Steel | Lifetime Limited |
| BORLA 140686 Cat-Back Performa | T-304 Stainless Steel | — |
| Borla 140851 Cat-Back Exhaust | Stainless Steel | 30 Days |
| Flowmaster 817674 American Thu | Stainless Steel | Lifetime Limited |
| Flowmaster 817895 American Thu | Stainless Steel | — |
| SLP Loud Mouth Cat-Back Exhaus | Polished stainless steel | SLP lifetime warranty |
More Details on Our Top Picks
Borla 14872 Cat-Back Exhaust System
The Borla 14872 stands out for its aircraft-quality T-304 stainless steel construction, which ensures durability under aggressive driving conditions. Unlike the Flowmaster systems, which may focus more on performance gains, Borla emphasizes a refined, unmistakable “BORLA Sound of Power” that appeals to enthusiasts seeking both sound and longevity. While the initial investment is higher, the corrosion-resistant material and precision fit make it a reliable choice for those wanting a long-term upgrade. The only tradeoff is its higher price, which might deter budget-conscious buyers. This system is perfect for owners who want a durable, high-quality exhaust with a distinctive sound that lasts.
Pros:- Made of corrosion-resistant aircraft-quality stainless steel
- Provides a distinctive “BORLA Sound of Power”
- Built to withstand extreme conditions and high performance use
- Precision fit ensures easy installation
Cons:- Higher price point compared to other brands
- Limited to more premium vehicle owners
Best for: Dodge Charger R/T owners prioritizing durability, signature sound, and long-term reliability.
Not ideal for: Budget-conscious buyers seeking a less expensive upgrade or those who prefer a less aggressive exhaust tone.
- Material Type:T-304 Stainless Steel
- Construction:All welded
- Pipe Diameter:Not specified
- Vehicle Fitment:2015-2023 Dodge Charger V6 & Chrysler 300 V6
- Sound Type:Signature BORLA sound
- Installation:Bolt-on
- Country of Origin:USA
Our verdict“This pick is best suited for owners who want a durable, signature-sounding exhaust that endures the test of time.”
Flowmaster 717830 FlowFX Cat-Back Exhaust Kit – 2.5 Inch 409 Stainless Steel, Fits 2015-2016 Dodge Challenger R/T 5.7L Hemi
The Flowmaster 717830 FlowFX excels in maximizing performance with its straight-through Flow FX mufflers and Scavenger Series X-Pipe crossover, which enhances exhaust flow compared to the more refined Borla system. Compared with Borla, which emphasizes longevity, Flowmaster is more about raw performance gains, especially suited for Challenger owners looking for loud, aggressive sound and maximum horsepower. The dyno-tuned setup ensures you get noticeable improvements, but the limited fitment—only for 2015-2016 Challenger R/T models—means it’s not as versatile. Installation is straightforward using factory hanger locations, making it ideal for those wanting performance without fuss. This system makes the most sense for Challenger owners who prioritize power and sound over long-term corrosion resistance.
Pros:- Straight-through Flow FX performance mufflers
- Scavenger Series X-Pipe for improved flow
- Dyno-tuned for maximum power
- Easy installation with factory hanger compatibility
Cons:- Limited to Challenger R/T 2015-2016 models
- Low customer rating (2.7/5 from limited reviews)
- Potentially very loud for daily driving
Best for: Challenger R/T owners seeking maximum performance and aggressive exhaust tone.
Not ideal for: Owners of other Dodge models or those looking for a subtle, long-lasting exhaust upgrade.
- Pipe Diameter:2.5 inches
- Material:409 Stainless Steel
- Vehicle Fitment:2015-2016 Challenger R/T 5.7L Hemi
- System Type:Cat-Back
- Warranty:Lifetime Limited
- Weight:48.7 pounds
Our verdict“This kit is ideal for Challenger owners wanting aggressive sound and performance, accepting limited vehicle compatibility and noise levels.”
BORLA 140686 Cat-Back Performance Exhaust System for 2015-2023 Dodge Charger V6 & Chrysler 300 V6
The BORLA 140686 provides a reliable upgrade for V6 Charger and Chrysler 300 owners, with its durable T-304 stainless steel construction and all-welded design. Compared with the Borla systems aimed at V8 models, this version offers a more affordable yet still premium-quality option that emphasizes durability and a no-drone ATAK sound. While the sound is aggressive, it’s optimized for daily driving comfort, unlike the louder Challenger or SRT variants. The re-use of factory exhaust tips simplifies installation, but the limited vehicle compatibility means it’s not suitable for V8 owners or those seeking maximum horsepower gains. This system makes the most sense for owners who want a high-quality, USA-made exhaust for daily V6 performance boosts.
Pros:- Made in the USA from durable T-304 stainless steel
- All-welded construction for longevity
- No drone guarantee for daily comfort
- Reuses factory exhaust tips for easy installation
Cons:- Limited to V6 models only
- Premium price may be high for some
- Design oriented more toward sound and durability than horsepower gain
Best for: V6 Dodge Charger and Chrysler 300 owners seeking a durable, USA-made exhaust with strong sound and no drone.
Not ideal for: V8 owners or those wanting the loudest possible exhaust tone or maximum performance gains.
- Material:T-304 Stainless Steel
- Construction:All welded
- Vehicle Fitment:2015-2023 Dodge Charger V6 & Chrysler 300 V6
- Sound Type:ATAK aggressive
- Installation:Bolt-on
- Country of Origin:USA
Our verdict“This system is perfect for owners prioritizing durability and refined sound in a long-lasting, USA-made package.”
Borla 140851 Cat-Back Exhaust System
The Borla 140851 offers a straightforward stainless steel design with a single outlet and a large 3.5-inch pipe diameter, making it suitable for a variety of Dodge models, unlike the more specialized systems like the Flowmaster Challenger kit. Its inclusion of a muffler and compatibility across cab and bed configurations makes it a versatile choice for those wanting a simple upgrade. Compared with the more performance-focused Borla V6 system, this model emphasizes broad compatibility and ease of installation, though it sacrifices some of the performance tuning features. The 30-day warranty is brief, but the positive customer ratings suggest reliability for those seeking a reliable, no-fuss exhaust upgrade. This pick suits owners who want a durable, simple exhaust for multiple truck configurations.
Pros:- Constructed from durable stainless steel
- Fits a wide range of cab and bed configurations
- Includes muffler for better sound control
- Large 3.5-inch pipe diameter for enhanced flow
Cons:- Limited customer review data
- Only a 30-day warranty
- Less performance tuning focus
Best for: Dodge owners needing a durable, straightforward exhaust that fits multiple vehicle configurations.
Not ideal for: Owners seeking maximum performance or a longer warranty period.
- Material:Stainless Steel
- Exhaust Type:Cat-Back
- Number of Outlets:Single
- Pipe Diameter:3.5 inches
- Compatibility:Various Dodge models
- Warranty:30 Days
Our verdict“This system is best for owners wanting a reliable, versatile exhaust upgrade without complex features or performance emphasis.”
Flowmaster 817674 American Thunder Cat-back Exhaust System
The Flowmaster 817674 American Thunder is designed with Super HP2 laminar flow technology, producing a deep, aggressive sound that appeals to those wanting a classic muscle car tone. Its stainless steel construction and factory hanger compatibility make it easy to install, similar to the Flowmaster Challenger kit, but with a focus on maximum clearance for off-road adventures. Compared to Borla’s more refined, signature sound, this system emphasizes a bold, unmistakable exhaust note and excellent off-road clearance, making it suitable for rugged use. The lifetime warranty adds reassurance, despite the lack of detailed customer reviews. It’s an ideal choice for owners who want a powerful sound and off-road-ready clearance, accepting that it may be louder and less subtle than premium brands.
Pros:- Stainless steel construction for durability
- Maximum clearance for off-road use
- Uses factory hanger locations for easy install
- Deep, aggressive sound for muscle car feel
Cons:- No customer review data available
- Potentially very loud in daily use
- No detailed performance gains specified
Best for: Owners seeking a deep, aggressive exhaust tone combined with off-road clearance capabilities.
Not ideal for: Daily drivers or owners seeking a subtle or refined exhaust tone.
- System Type:Cat-back
- Technology:Super HP2 laminar flow
- Material:Stainless Steel
- Installation:Factory hanger locations
- Warranty:Lifetime Limited
Our verdict“This system is best for owners wanting a loud, powerful exhaust with off-road clearance, at the expense of subtlety.”
Flowmaster 817895 American Thunder Cat-Back Exhaust System
The Flowmaster 817895 American Thunder stands out as the best overall choice due to its combination of moderate interior sound and aggressive exterior tone, making it suitable for drivers who want noticeable gains without excessive noise. Compared to the SLP Loud Mouth, which offers a more aggressive sound profile, this system provides a balanced approach with a 15 hp and 19 lb-ft torque increase, thanks to its 3-inch tubing and Super 40 Series muffler. Its stainless steel construction and factory hanger compatibility make installation straightforward, while the lifetime limited warranty adds peace of mind. However, the interior sound level is still noticeable, and with only 19 reviews, its long-term reliability is less established. This pick makes the most sense for those seeking a reliable, well-rounded upgrade that enhances both performance and sound without overwhelming the cabin or requiring extensive modifications.
Pros:- Max dyno gains of 15 hp and 19 lb-ft torque
- Stainless steel construction with lifetime warranty
- Easy installation using factory hanger locations
- Aggressive exterior tone with moderate interior sound
Cons:- Interior tone may still be noticeable to some drivers
- Limited customer reviews make long-term reliability less clear
Best for: Dodge Charger R/T owners who want a reliable, moderate upgrade in sound and performance with straightforward installation.
Not ideal for: Drivers seeking an extremely loud exhaust for maximum sound or aggressive aesthetic, as this system strikes a balance rather than pushing loudness to the limit.
- Brand:Flowmaster
- Model Number:817895
- Tubing Diameter:3 inches
- Muffler:Super 40 Series
- Tip Size:4 inches (Black Ceramic Coated Stainless Quad Tips)
- Exit Style:Dual Rear Exit
- Material:Stainless Steel
- Max Horsepower Gain:15 hp
- Max Torque Gain:19 lb-ft
Our verdict“This system is best suited for those who want a balanced performance upgrade with a pleasing sound profile and reliable build quality.”
SLP Loud Mouth Cat-Back Exhaust System with 4″ Tips for 2005-2014 Dodge Charger SRT-8
The SLP Loud Mouth system is ideal for enthusiasts who crave a highly audible, aggressive exhaust note, especially compared with the more subdued Flowmaster American Thunder. Designed specifically for 2005-2014 Dodge Charger SRT-8 models, it features mandrel-bent piping and resonators that amplify sound, with a distinctive loud and deep tone. The included x-pipe and 4-inch polished stainless steel tips add both performance and visual flair. Its straightforward installation and lifetime warranty make it a strong choice for those who value ease of upgrade and durability. The main tradeoff, however, is that the exhaust’s volume might be too intense for daily drivers or those living in noise-sensitive areas. This system is perfect for owners aiming for maximum sound impact and visual presence, with performance benefits secondary to the auditory experience.
Pros:- Direct fit for 2005-2014 Charger SRT-8
- Polished stainless steel resonators and tips for durability and aesthetics
- Includes x-pipe, mandrel-bent piping, and resonators for enhanced sound
- Backed by SLP’s lifetime warranty
Cons:- Excessively loud for some daily driving scenarios
- Aggressive design may not appeal to all aesthetic preferences
Best for: Dodge Charger SRT-8 owners who want a loud, attention-grabbing exhaust with a polished look and easy install.
Not ideal for: Drivers seeking a quieter or more subtle exhaust system, as the Loud Mouth is designed for maximum volume and presence.
- Brand:SLP Performance
- Fitment:2005-2014 Dodge Charger SRT-8
- Tip Size:4 inches
- Material:Polished stainless steel
- Includes:X-pipe, mandrel-bent piping, resonators, tips, hardware, instructions
- Warranty:SLP lifetime warranty
Our verdict“This system is best suited for those seeking a loud, aggressive exhaust that makes a statement both audibly and visually, at the expense of subtlety.”
How We Picked
These exhaust systems were evaluated based on performance improvements, sound quality, build durability, ease of installation, and value for the price. We prioritized systems that are compatible with the Dodge Charger R/T, ensuring they meet the specific engine and chassis requirements. Each product was chosen for its balance of quality, customer satisfaction, and user feedback, with a focus on options suitable for both daily drivers and enthusiasts seeking a performance boost. The ranking reflects a combination of overall quality, sound character, and long-term reliability, helping buyers find a system that matches their driving style and budget.Factors to Consider When Choosing Best Cat-back Exhaust Systems For Dodge Charger R/T
When selecting a cat-back exhaust system for your Dodge Charger R/T, several factors should influence your choice. Beyond raw sound and performance, consider installation complexity, material durability, and how the system complements your driving habits. Making an informed decision involves balancing your desire for aggressive tone with daily comfort and long-term reliability. Here are key aspects to guide your purchase.Sound and Tone
Sound is the most subjective aspect of exhaust upgrades. Some prefer a deep, throaty growl for a muscle car feel, while others want a more subdued tone for daily driving. Consider whether volume levels are adjustable or if the system offers a customizable sound profile. Remember that louder exhausts can draw more attention and may not be legal in all areas, so check local regulations before choosing the loudest options.
Material and Durability
Stainless steel, especially 409 and 304 grades, is common for exhaust systems because it resists corrosion and lasts longer. Cheaper materials might save money upfront but can degrade quickly, especially in harsh climates. Investing in a higher-quality material pays off over time by maintaining appearance and performance, reducing replacement costs and maintenance hassles.
Installation Ease
Some systems are designed for straightforward bolt-on installation, suitable for DIY enthusiasts with basic tools. Others may require welding or professional installation, adding to the cost but often resulting in a more secure fit. If you’re new to car mods, choosing a system with plug-and-play mounting can save time and reduce frustration, but ensure it still meets your performance goals.
Performance Gains
Look beyond sound and consider how much horsepower and torque improvements a system offers. Some designs focus more on sound, while others optimize flow for measurable performance benefits. Be wary of overly aggressive systems that might increase drone or reduce daily comfort—balance your expectations accordingly.
Price and Value
Premium exhaust systems often come with better materials, sound quality, and performance boosts, but at a higher cost. Budget options can still improve sound and appearance, but may sacrifice longevity or quiet operation. Assess how much you’re willing to invest and what tradeoffs are acceptable to get the best value for your specific needs.
Frequently Asked Questions
Will installing a new cat-back exhaust system affect my Dodge Charger R/T’s warranty?
Installing an aftermarket exhaust can potentially impact your vehicle’s warranty, especially if it causes engine or emissions issues. However, many manufacturers design systems that are emissions-compliant and can be installed without voiding the warranty. It’s wise to check your vehicle’s warranty terms and consult with your dealer or a professional installer before making modifications.
Is a louder exhaust system legal in all areas?
No, exhaust noise regulations vary by location. Some areas have strict limits on volume levels or require emissions-compliant systems. Installing a very loud system might lead to fines or failed inspections. Always verify local laws and consider noise restrictions before choosing a high-volume exhaust system.
Can I install a cat-back exhaust system myself?
Many systems are designed for DIY installation, especially bolt-on types that don’t require welding. Basic mechanical skills and tools are usually sufficient, but some setups may be more complex or require professional welding. If you’re inexperienced, hiring a professional can ensure proper fitment and avoid potential damage or noise issues.
How much performance improvement can I expect from a cat-back exhaust?
Typically, a well-chosen cat-back exhaust can provide a noticeable increase in horsepower and torque, often in the 5-15% range depending on the system and engine modifications. The main benefits are improved airflow and sound, but gains vary based on the system’s design and your vehicle’s existing setup. For significant performance gains, pairing the exhaust with other upgrades may be necessary.
Should I prioritize sound or performance when choosing an exhaust system?
It depends on your driving preferences. If you value a deep, aggressive tone and enjoy loud exhaust sound, prioritize sound characteristics. If you prefer subtlety with some performance enhancement, look for systems that balance quiet operation with flow improvements. Many systems offer adjustable features or different tips to fine-tune the sound to your liking.
Conclusion
For those seeking an all-around upgrade, the Borla 14872 stands out as the best overall choice thanks to its balanced performance, sound, and durability. If budget is a concern, the Flowmaster American Thunder delivers a satisfying growl at a lower price, ideal for enthusiasts on a tight budget. Buyers after the highest quality and longevity should consider premium options like Borla’s stainless steel systems, though they come at a higher cost. Beginners or casual owners will benefit from systems that are easy to install and maintain, while performance-focused drivers may want to explore options with the most horsepower gains. In every case, matching the system to your driving style and sound preference ensures satisfaction in the long run.Fall Picks
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