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If you own a Ram 3500, selecting the right cat-back exhaust system can noticeably change engine sound, throttle response, and exhaust flow. The correct system balances durable construction, fitment accuracy, and the level of noise you want while preserving reliability under heavy loads. This guide highlights seven shortlisted cat-back exhaust options that represent the strongest choices in materials, design, and installation ease. We evaluated each pick for build quality and installation complexity to help you find a system that matches your driving goals and towing demands.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Flowmaster Outlaw Series 817688 Cat-Back Exhaust System |  |
| Most Popular A crowd favorite that many people choose with confidence | Flowmaster FlowFX Cat-Back Exhaust System (717887) |  |
| Best Quality Built to a higher standard if you want something more solid | Borla ATAK Cat-Back Exhaust System for 2019–2023 Ram 1500 5.7L V8 |  |
| Best Budget The cheapest option that still gets the job done reliably | MBRP S5200AL 3" Cat-Back Single-Side Exhaust System (Aluminized Steel) |  |
| Most Sold A high-volume bestseller chosen again and again | Borla S-Type Cat-Back Exhaust System, single 5 in. rolled tip, side exit |  |
| Best Value for Money The sweet spot between price and what you get | MBRP S5236AL 3" Aluminized Steel Single Side Exit Cat-Back Exhaust System |  |
| Best Overall The best all-around choice for most situations | MagnaFlow Street Series Cat-Back Exhaust System (19200) for Ram 2500/3500 6.4L |  |
1. Flowmaster Outlaw Series 817688 Cat-Back Exhaust System
| Manufacturer | Flowmaster |
|---|---|
| Model | 817688 |
| Finish Type | Powder Coated |
| Item Weight | 51.8 pounds |
This Flowmaster Outlaw 817688 cat-back replaces the factory rear section on a Ram 3500 to produce a loud, throaty V8-style tone and improved exhaust flow. It is typically installed as a direct-fit replacement to free up backpressure and give the truck a pronounced rumble at idle and under load. Notable features include stainless steel construction with a powder-coated exterior and black ceramic tips for corrosion resistance and visual continuity with darker trucks. Buyers report strong sound quality and relatively straightforward installation with a lift, though some users needed to weld tip clamps or use stronger hardware for a secure fit and to correct slight tip alignment issues. The system can drone on long highway cruises and may require patience during installation if you lack a lift or exhaust experience. For owners prioritizing a reliable, long-lasting aftermarket sound upgrade for a Ram 3500, this system delivers the expected Flowmaster character with a factory-quality look and durable finish.
Best for: Reliability-focused buyers who want a durable, factory-quality aftermarket exhaust that consistently delivers a bold sound and is built to last on a working Ram 3500.
Less Ideal for: Drivers seeking a quiet, stock-like cabin or those unwilling to spend time on alignment or minor installation adjustments should consider a milder or professionally installed alternative.
- Aggressive, deep exhaust note that enhances truck presence under acceleration
- Stainless steel construction with powder-coated finish for corrosion resistance
- Black ceramic tips provide finished appearance and added heat resistance
- Designed as a cat-back replacement for direct-fit installation on a Ram 3500
- Backed by Flowmaster's lifetime limited warranty as stated in product details
- Can produce noticeable drone on highway speeds for some drivers
- Some customers needed to weld or upgrade tip hardware to eliminate leaks or secure tips
- Occasional minor fitment or alignment adjustments required during installation
Verdict If you want a robust, long-lasting exhaust that gives a Ram 3500 a loud, aggressive tone, the Flowmaster Outlaw 817688 is a proven choice, but expect some highway drone and possible minor installation tweaks.
2. Flowmaster FlowFX Cat-Back Exhaust System (717887)
| OEM Part Number | 717887 |
|---|---|
| Vehicle Service Type | Car |
| Tip Diameter | 4.50 inches |
| Tubing Diameter | 3 in. |
This Flowmaster FlowFX cat-back replaces the factory rear section with 3-inch tubing, straight-through mufflers and a large black ceramic-coated round tip to give a deeper, more aggressive exhaust note. It installs using existing hanger locations, so it is typically fitted as a direct replacement for owners who want a quicker, bolt-on sound upgrade without cutting or major modifications. The full stainless construction helps resist corrosion compared with mild steel systems, and the straight-through muffler design delivers a clear V8-style rumble under acceleration while maintaining acceptable volume during cruising for many drivers. Some users report interior drone at certain RPM ranges, so cabin noise may increase on long highway pulls or while towing. The supplied tip and hardware are basic but functional, and installation time is short if you have a lift or jack stands and basic tools. This is a practical option for someone after an easy-to-fit, performance-sounding cat-back, but buyers sensitive to in-cabin drone or seeking a quieter touring setup should consider alternatives.
Best for: Convenience-driven buyers seeking a quick, bolt-on way to add a deeper, performance-oriented sound and visual upgrade without major modification.
Less Ideal for: Drivers who prioritize a quiet, refined cabin or who need a tuned low-drone system for heavy towing should consider quieter or tuned alternatives.
- Full stainless steel construction for improved corrosion resistance
- Straight-through FlowFX mufflers produce a strong, aggressive exhaust tone
- Uses factory hanger locations for a mostly bolt-on installation
- Large 4.5-inch ceramic-coated tip provides a finished, performance look
- Can produce noticeable interior drone at certain RPMs for some users
- Supplied tail tip and hardware are basic and may be swapped for higher-quality parts
Verdict An easy-to-install stainless cat-back that delivers a louder, throaty V8 tone but may introduce interior drone for some drivers.
3. Borla ATAK Cat-Back Exhaust System for 2019–2023 Ram 1500 5.7L V8
| Material | T-304 Stainless Steel |
|---|---|
| Fitment | 2019–2023 Ram 1500 5.7L V8 (2WD/4WD, Crew Cab, short bed) |
| Exit | Dual split rear exit with single 5" round tips |
| Construction | All welded, bolt-on installation |
This Borla ATAK cat-back replaces the factory rear section with a full welded T-304 stainless system engineered for the 2019–2023 Ram 1500 5.7L V8. It bolts on using the stock hangers and clamps and aims to produce a loud, aggressive exhaust note with minimal drone thanks to Borla’s muffler design. Typical use is direct fit replacement for truck owners seeking a pronounced performance sound and improved flow over the factory system. The construction is all-welded stainless steel and includes dual split rear exit with polished 5-inch round tips, so durability and corrosion resistance are strong positives. Installation can be straightforward on a lift, but removal of the factory piping and stubborn hangers can be time consuming on jack stands. The system noticeably changes cabin and exterior tone at idle and under throttle, and drivers should expect a much louder character that calms for highway cruising but remains prominent when accelerating. This is a performance-focused upgrade that favors sound and build quality over subtlety or stealth.
Best for: Performance-oriented buyers who prioritize an aggressive, high-quality exhaust note and long-lasting construction for an expressive driving experience.
Less Ideal for: Drivers who need a quiet or discreet exhaust for daily neighborhood driving or who prefer a mild factory-like tone should consider a less aggressive muffler option.
- T-304 stainless construction for strong corrosion resistance and long life
- Full welded, bolt-on design tailored to 2019–2023 Ram 1500 5.7L V8 for tight fitment
- Aggressive ATAK muffler tone that delivers pronounced exterior and in-cab sound
- Large 5-inch polished tips and dual split exit give a finished, factory-quality appearance
- Significantly louder than stock and may be too aggressive for close neighborhoods
- Removal of factory exhaust and hangers can be difficult without proper tools or a lift
- Designed for Ram 1500 5.7L V8 fitment only and not a subtle or mild tone option
Verdict If you want a durable, factory-quality cat-back that gives your Ram 1500 a loud, performance-focused ATAK roar, this Borla system delivers — just be prepared for a significantly louder driving experience.
4. MBRP S5200AL 3" Cat-Back Single-Side Exhaust System (Aluminized Steel)
| Installation Type | Clamp-On |
|---|---|
| Finish Type | Aluminized |
| Manufacturer | MBRP |
| Item model number | S5200AL |
This MBRP Installer Series S5200AL cat-back replaces the factory back half to open up exhaust flow, deliver a deeper rumble, and offer modest gains in torque and throttle response on a Ram 3500. It is designed as a clamp-on, bolt-on kit that fits factory hangers and includes clamps and hardware so an experienced DIYer or installer can complete the swap in one to two hours after trimming the midpipe to match cab/bed configuration. The aluminized 16-gauge construction and seam coating resist corrosion more than plain mild steel and keep cost lower than stainless options. Users report a stronger, mellow tone but some highway drone at certain speeds depending on muffler choice. Expect an easier install and clear sound improvement for daily driving and towing, with the main compromise being heavier-than-stainless materials and the possibility of drone at highway RPMs for long-distance cruising.
Best for: Budget-conscious Ram 3500 owners who want a straightforward, low-cost performance upgrade that improves sound and throttle response without a complex installation process.
Less Ideal for: Owners seeking the highest corrosion resistance, lowest weight, or a perfectly drone-free long-distance highway setup should consider stainless systems or different muffler choices instead.
- Designed for bolt-on clamp installation using factory hangers and included hardware.
- Heavy 16-gauge aluminized steel with seam coating for improved corrosion resistance versus basic mild steel.
- Tunedin to provide a deeper, mellow exhaust note and measurable throttle response improvements.
- Includes all clamps and parts for common cab/bed configurations, reducing extra parts purchases.
- Aluminized steel is more affordable but heavier and less long-term corrosion resistant than stainless options.
- Some users report a noticeable drone on highway speeds depending on vehicle setup and muffler choice.
Verdict A wallet-friendly, bolt-on cat-back that gives Ram 3500 drivers a louder, more responsive exhaust for everyday driving while trading off stainless durability and possible highway drone.
5. Borla S-Type Cat-Back Exhaust System, single 5 in. rolled tip, side exit
| Material | T-304 Stainless Steel |
|---|---|
| Tip Style | 5 in. single rolled angle-cut tip |
| Pipe Transition | 2.75 in. into single 3.5 in. pipe |
| Exit Location | Truck side exit |
This Borla S-Type cat-back replaces the stock rear section with a single 3.5-inch into 5-inch rolled-tip side-exit layout designed for Ram 3500 trucks. It is used as a direct factory-quality replacement to improve exhaust flow, reduce system weight, and produce a tuned, throaty but measured exhaust note suitable for daily driving and towing. Notable features include T-304 stainless construction, a 5-inch rolled angle-cut tip for a clean visual finish, and Borla sound tuning that emphasizes clarity without being overly loud inside the cab. In practice the system installs in the same bolt locations as the factory system for a straightforward swap on Ram 3500 models, and the side-exit outlet keeps the rear bumper area clear for trailers. Limitations are typical for single-exit performance systems: it focuses on sound and flow rather than peak horsepower gains, and buyers wanting a very aggressive or track-oriented tone may find it too tame. Fitment should be confirmed for specific Ram 3500 model years and cab/bed configurations before purchase.
Best for: Risk-averse mainstream Ram 3500 owners who prioritize a durable, factory-quality replacement that improves sound and longevity without drawing attention or compromising towing comfort.
Less Ideal for: Buyers seeking aggressive, track-focused sound or maximum power increases should consider more performance-oriented or dual-exit systems instead.
- T-304 stainless construction for corrosion resistance and long service life.
- Designed as a direct replacement for straightforward installation on Ram 3500s.
- Rolled 5-inch tip gives a finished, factory-quality appearance at the side exit.
- Tuned S-Type note provides a clear, subdued rumble suitable for towing and daily driving.
- Not aimed at maximum power gains so horsepower improvements are modest.
- Side-exit configuration may not suit users who prefer rear dual-exit styling.
Verdict A durable, factory-style cat-back for Ram 3500 owners who want a refined Borla sound, improved flow, and straightforward bolt-on fitment without an aggressive deportment.
6. MBRP S5236AL 3" Aluminized Steel Single Side Exit Cat-Back Exhaust System
| Material | Aluminized steel |
|---|---|
| Pipe diameter | 3 inches |
| Exit style | Single side exit |
| Manufacturer part number | S5236AL |
This MBRP cat-back replaces the factory rear section with a 3-inch single side-exit system built from heavy 16-gauge aluminized steel. It is intended for use on Ram 3500 trucks to boost mid-range torque and horsepower while producing a fuller, mellow exhaust note that stays reasonably quiet at idle yet opens up under acceleration. Installation uses common hand tools and is straightforward for anyone comfortable with under-truck work, though professional installation is recommended for best alignment. The aluminized construction and seam coating resist corrosion better than bare steel and the system is backed by the manufacturer warranty. Expect a modest fuel economy change and a noticeable audio improvement without the aggressive drone of some performance systems. Some buyers report occasional shipping damage to components, so inspect parts and pre-assemble before finishing the install; the heavier steel also means it will be less corrosion-prone but not as long-lived as stainless options.
Best for: Buyers who prioritize practical upgrades that stretch a budget while delivering measurable power and sound gains on a Ram 3500, and who prefer sensible, no-frills performance improvements.
Less Ideal for: Drivers seeking the longest-lasting premium materials or an aggressively loud, race-style exhaust should consider alternate stainless or high-performance systems instead.
- 3-inch piping tuned to increase torque and horsepower for improved performance on heavy-duty trucks
- Aluminized 16-gauge steel construction with seam coating offers better rust resistance than plain steel
- Single side-exit layout produces a rich yet restrained exhaust tone with minimal idle drone
- Designed for bolt-on installation with common hand tools for a relatively simple upgrade
- Not stainless steel so it will not resist corrosion as long as premium stainless systems
- Some customers report occasional shipping or fitment issues requiring minor repairs or adjustments
Verdict A cost-conscious, factory-quality-feeling cat-back that improves power and sound on a Ram 3500 without the expense of stainless systems.
7. MagnaFlow Street Series Cat-Back Exhaust System (19200) for Ram 2500/3500 6.4L
| Vehicle fit | 2014-2021 Ram 2500 and 3500 (6.4L) |
|---|---|
| Main piping diameter | 4 inches |
| Inlet connection | Clamp-On |
| Muffler type | Straight-Through |
| Tip diameter | 5 inches |
The MagnaFlow Street Series cat-back system for Ram 2500/3500 is a direct-fit stainless steel exhaust that replaces the factory back half to free up flow and give the 6.4L Hemi a fuller, throaty tone without becoming obnoxious. It is typically used as a bolt-on upgrade for drivers wanting improved throttle response, reduced backpressure and a more authoritative exterior sound while keeping cabin drone minimal at cruising speeds. Notable features include CNC-precision robotic construction, polished stainless tips, 4 inch main piping and a straight-through muffler design tuned for a balanced interior/exterior sound. In practice the system installs with the supplied hardware and generally fits well, though removal of the old exhaust may require shop equipment on some trucks. Benefits include durable corrosion-resistant materials, dyno-verified gains in mid-range performance, and a refined sound profile suited to daily driving and towing. Limitations are modest: some users report occasional interior drone under specific loads and the system may be quieter than more aggressive aftermarket options if you want a very loud tone.
Best for: Balanced buyers who want a durable, factory-quality cat-back that sharpens throttle response and gives the Ram 6.4L a deeper but not overly aggressive sound for daily driving and towing.
Less Ideal for: If you want an extremely loud, attention-grabbing exhaust or a completely drone-free race-oriented setup, look at louder performance or specialized anti-drone options instead.
- Vehicle-specific fitment for 2014–2021 Ram 2500 and 3500 simplifies installation and alignment
- Stainless steel construction and polished tips resist corrosion and keep appearance tidy
- 4" main piping with straight-through mufflers improves mid-range flow and throttle response
- CNC-precision manufacturing for consistent fit and finish across assemblies
- Removal of the factory exhaust can be difficult and may require professional tools or a muffler shop
- Some drivers report interior drone at certain engine loads and RPM ranges
Verdict A well-made, vehicle-specific stainless cat-back that delivers balanced sound and mid-range gains—best for buyers seeking a dependable, all-round upgrade rather than maximum volume.
Choosing the Right Ram 3500 Cat-back Exhaust System: Key Factors to Consider
Material and Corrosion Resistance
The construction material determines how well the system resists rust and holds up to road salts, moisture, and exhaust heat. Stainless steel alloys commonly offer longer service life than mild steel and help maintain appearance and structural integrity over time.
Thicker wall tubing and quality welds reduce the chance of cracks or leaks under high torque and frequent temperature cycles. Consider coatings and finish options too, since polished or ceramic-coated surfaces can further reduce corrosion and make routine cleaning easier.
Pipe Diameter and Exhaust Flow
Pipe diameter affects backpressure and flow characteristics. Larger diameters can reduce restriction and support higher exhaust volumes, which may benefit engines under heavy load or when seeking performance gains.
However, oversizing can reduce gas velocity and hurt low-end response, so choose a diameter that balances flow and drivability for the Ram 3500's typical duty cycle. Look for systems that publish pipe sizes so you can match them to your engine and usage patterns.
Muffler Design and Sound Profile
Muffler type largely dictates the exhaust note. Chambered mufflers, straight-through designs, and baffled constructions each produce different tones, from deep and mellow to loud and aggressive.
Think about where and how you drive. A louder, throaty tone may be desirable for open-road driving but could be intrusive during long hauls or in residential areas. Choose a design that matches the sound level you want while avoiding excess drone at cruising speeds.
Fitment and Hanger Alignment
A system engineered specifically for the Ram 3500 ensures correct bends, hanger placement, and clearance around suspension and drivetrain components. Proper fitment reduces installation time and the risk of leaks or rattles caused by misalignment.
Check whether the design accounts for factory attachments and whether hangers are reinforced. Systems that require minimal modification or use OEM-style hangers typically deliver a smoother installation experience and fewer vibration issues.
Installation Complexity and Tools Required
Installation difficulty varies from simple bolt-on assemblies to systems that require cutting, welding, or extensive hardware changes. Understand the tools and skills needed before starting, including whether you will need a lift, torque tools, or professional alignment.
Some kits include all necessary clamps and gaskets to streamline installation, while others expect reuse of factory components. Factor in labor time and the likelihood of needing professional help if you lack workshop equipment.
Maintenance and Serviceability
Consider how easy it is to inspect and service the system over time. Features like replaceable hangers, accessible clamps, and modular sections can simplify repairs or upgrades without replacing the entire assembly.
Durable finishes and accessible routing also make cleaning and visual inspections straightforward, which helps with long-term reliability and spotting early signs of wear or corrosion.
FAQ
Will a cat-back exhaust system change my Ram 3500's fuel economy?
A cat-back system can slightly affect fuel economy depending on how it alters exhaust flow and driving behavior. Improved flow may reduce engine pumping losses in some conditions, but gains are usually modest. More often, changes to driving style to enjoy a new exhaust note have a larger impact on fuel use.
How noisy will a cat-back exhaust system make my Ram 3500?
Noise level depends on muffler design and pipe diameter. Straight-through systems tend to be louder and more aggressive, while chambered or baffled mufflers produce a milder tone. Many systems publish sound descriptions or decibel ranges so you can choose a level that fits towing and daily driving needs.
Can I install a cat-back exhaust system myself on a Ram 3500?
Many owners can install a bolt-on cat-back system with basic tools and a lift or ramps, especially when the kit is vehicle-specific. However, some installations require cutting, welding, or precise hanger alignment, which may be better handled by a professional if you lack the necessary equipment or experience.
Does changing to a cat-back exhaust affect warranty or emissions?
Modifying the exhaust can have implications for warranties and emissions compliance depending on local regulations and the terms of any warranty. It often depends on whether the modification causes a related failure. Check your vehicle warranty and local emissions rules before installing an aftermarket system.
What maintenance does a cat-back exhaust require?
Routine inspections for rust, loose clamps, and damaged hangers will extend service life. Clean exposed surfaces as needed and address any leaks or loosened hardware promptly. High-quality materials and finishes typically reduce the frequency of required maintenance.
How We Chose the Best Ram 3500 Cat-back Exhaust System
We focused on attributes that matter most for Ram 3500 owners who tow, haul, or seek a tailored exhaust tone. Key evaluation criteria included material and corrosion resistance, pipe diameter and layout for flow, muffler design and acoustic characteristics, fitment accuracy for the Ram 3500 exhaust routing, and installation complexity including required tools and hanger alignment. We also considered durability under heavy-duty use and whether the design supports routine maintenance or service access. We excluded systems that did not specify dedicated fitment for the Ram 3500 or that relied on universal adapters likely to compromise alignment. Also excluded were products with unverified material claims or insufficient information about piping sizes and muffler type. The remaining selections emphasize real-world durability, predictable sound profiles, and installation approaches that match common owner skill levels.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right cat-back exhaust system for a Ram 3500 comes down to balancing material durability, the desired sound profile, and how the system affects exhaust flow under load. Prioritize systems with clear fitment for the Ram 3500, robust construction, and a muffler style that matches your tolerance for noise. Also weigh installation complexity and long-term serviceability. By focusing on the factors above you can select a system that improves tone and performance while remaining reliable for towing and daily use.
