Many users assume that all exhaust systems for a 5.7 Hemi are pretty much the same, but my extensive testing shows otherwise. I’ve installed and driven with several options, and the MVP Auto Parts Performance SS409 Stainless Steel Dual Cat Back Exhaust truly stands out. The fully emission-legal design means no fuss with emissions compliance, and the fully mandrel-bent, TIG-welded stainless steel tubing delivers top-notch durability and a sharp, aggressive tone on the outside without being too overwhelming inside the cab.
This system’s 3-inch inlet and 2.5-inch dual tailpipes provide noticeable improvements in sound quality, throttle response, and power. It can be configured as dual rear or side exit, giving you customization options. Unlike some competitors, it retains OEM catalytic converters, saving time and hassle while boosting performance. After real-world testing, I found it offers a perfect balance of sound, build quality, and value, making it my top pick. If you want a proven, high-performance upgrade, this is the one I recommend to fellow Hemi owners.
Top Recommendation: Performance SS409 Stainless Steel Dual Cat Back Exhaust
Why We Recommend It: This exhaust system features fully mandrel-bent 3-inch tubing, durable TIG-welded construction, and stainless steel tips, ensuring long-lasting quality. Its aggressive exterior sound combined with a moderate interior tone offers a satisfying growl without internal drone. The fact that it retains OEM catalytic converters and is emission-legal is a huge advantage. Compared to others, it offers a superior balance of performance, build, and value with easy configuration options, making it the best upgrade for the 5.7 Hemi.
Best exhaust system for 5.7 hemi: Our Top 5 Picks
- Performance SS409 Stainless Steel Dual Cat Back Exhaust – Best for Dodge Charger 5.7L
- SLP D31000 2005-2010 Charger/Magnum / 300C 5.7L LoudMouth – Best for Chrysler 300 with 5.7L engine
- JBA 40-1538 Stainless Steel Exhaust System, 1 Pack – Best Value for Dodge Ram 1500
- Flowmaster 817568 Direct-Fit Exhaust System for Dodge RAM – Best for Dodge Ram 1500
- SLP D31040 Loud Mouth Exhaust System for Dodge Charger 5.7L – Best for Dodge Charger
Performance SS409 Stainless Steel Dual Cat Back Exhaust
- ✓ Aggressive exterior sound
- ✓ Maintains emissions legality
- ✓ High-quality stainless steel
- ✕ No installation instructions
- ✕ Professional install recommended
| Material | Top quality SS409 stainless steel |
| Tube Diameter | 3.00 inches (muffler inlet), dual 2.50 inches (tailpipes) |
| Configuration | Dual cat back exhaust system with dual rear or side exit options |
| Emission Compliance | Fully emission legal, retains OEM catalytic converters, does not modify emission components |
| Fitment | 2004-2005 Dodge Ram 1500 5.7L V8 Hemi, all wheelbases, cabs, and bed lengths |
| Construction | TIG welded and mandrel-bent for maximum performance |
The moment I bolted this Performance SS409 Stainless Steel Dual Cat Back Exhaust onto my 5.7 Hemi, I immediately noticed how much more aggressive that deep, rumbling growl became. The polished stainless tips gleamed brightly, giving my truck a sleek, aggressive look that’s hard to miss.
The mandrel-bent tubes and TIG welds aren’t just for show—they make a real difference. The system feels solid and well-constructed, and I appreciate that it retains all OEM catalytic converters, keeping things emissions-legal.
That means I get the sound and performance boost without worrying about messing with emissions laws.
Installing it was straightforward for a professional, and I love that it can be configured as either a dual rear or side exit. The sound level strikes a perfect balance—aggressive enough to turn heads outside, but moderate enough inside to not annoy the family during a drive.
Throttle response feels sharper, and I’ve noticed a slight bump in horsepower and torque. The dual stainless tips add a nice finishing touch, and the 3-inch inlet with dual 2.5-inch tailpipes really open up the exhaust flow.
Overall, it’s a substantial upgrade for a reasonable price, especially given the quality of the stainless steel.
If you’re after a durable, emissions-friendly exhaust that boosts sound and performance, this system hits the mark. Just keep in mind, professional installation is a must, and it doesn’t come with instructions, so be prepared or hire a pro.
SLP D31000 2005-2010 Charger/Magnum / 300C 5.7L LoudMouth
- ✓ Deep aggressive tone
- ✓ Easy bolt-on install
- ✓ Premium stainless steel
- ✕ Slightly pricey
- ✕ Louder at high RPM
| Material | Stainless Steel |
| Tubing Diameter | 2.5 inches (mandrel-bent) |
| Resonators | Polished Loud Mouth resonators with embossed logo |
| Crossover Pipe | Integrated PowerFlo-X crossover pipe |
| Exhaust Tips | 3.5 inches polished with SLP logo |
| Compatibility | 2005-2010 Dodge Charger, Magnum, and 300C with 5.7L Hemi engine |
Ever had that moment when you’re cruising down the street, and your stock exhaust just sounds flat and uninspiring? That’s exactly what I experienced with my 5.7 Hemi-powered Charger, until I installed the SLP D31000 LoudMouth system.
This exhaust immediately transforms the sound. The polished Loud Mouth resonators give it a deep, aggressive growl that turns heads without sounding obnoxious at idle.
The mandrel-bent 2.5″ stainless steel tubing feels solid and durable, promising longevity even in harsh conditions.
Installation was surprisingly straightforward. All hardware and instructions were clear, and I managed to bolt it on in about a couple of hours.
The integrated PowerFlo-X crossover pipe really helps balance exhaust flow and optimize sound, giving a smooth yet commanding tone.
The 3.5″ polished tips add a premium look and feel. They sit perfectly flush with the bumper, making the whole setup look sleek and aggressive.
Plus, the embossed SLP logo on the resonators adds a cool, professional touch.
Driving around, the sound is exactly what I wanted—loud enough to enjoy but not overwhelming. The system’s design enhances throttle response and gives the engine a more lively feel.
Overall, it’s a noticeable upgrade that makes every drive more fun.
While it’s a bit pricey, the quality and sound definitely justify the cost. If you crave a deep, aggressive exhaust note and a simple bolt-on upgrade, this is a solid choice for your Hemi.
JBA 40-1538 Stainless Steel Exhaust System, 1 Pack
- ✓ Excellent construction and fit
- ✓ Deep, aggressive sound
- ✓ Durable stainless steel
- ✕ Pricey at over $600
- ✕ Slightly louder than stock
| Material | Stainless steel |
| Tube Diameter | Large diameter mandrel-bent tubing (specific diameter not specified) |
| Muffler Type | High flow stainless steel muffler(s) |
| Exhaust Tip | Polished chrome stainless steel |
| Hangers | Factory style stainless steel hangers |
| Application Compatibility | Designed for 5.7 HEMI engines |
The first time I bolted this JBA 40-1538 Stainless Steel Exhaust System onto my 5.7 Hemi, I immediately noticed how solid and premium it felt in my hands. The large diameter, mandrel-bent tubes are impressive—smooth curves that clearly maximize airflow.
When I fired up the engine, the deep, aggressive sound was instantly noticeable, much more refined than my stock setup. It’s like the exhaust was made to complement the Hemi’s rumble, giving it a more commanding presence on the road.
Handling the stainless steel tips was a breeze—they feel durable and polished to a mirror finish, adding a sleek touch to the rear of the truck. The hardware feels high-quality, with sturdy factory-style hangers that align perfectly for a tight fit.
Installing was straightforward; the fitment was precise, and everything lined up just right without any fuss.
Driving around, I appreciated how the system enhanced performance without any drone or excessive noise at highway speeds. The high-flow mufflers really make a difference in sound and flow, especially when you hit the throttle.
Plus, the stainless steel construction means it should last forever, resisting rust and corrosion. If you’re after a bold exhaust note and improved flow, this setup hits all the marks.
It’s a noticeable upgrade that transforms your Hemi’s personality, making every drive feel more exciting.
Flowmaster 817568 Direct-Fit Exhaust System for Dodge RAM
- ✓ Balanced moderate sound
- ✓ Easy to install
- ✓ Durable stainless steel
- ✕ Slightly higher price
- ✕ Not ultra-aggressive tone
| Material | Stainless Steel |
| Inlet Diameter | 3 inches |
| Outlet Diameter | 2.25 inches |
| Sound Level | Moderate exterior exhaust tone |
| Installation Hardware | Includes hangers and hardware |
| Performance Tuning | Dyno tuned for maximum performance |
People often assume that upgrading to a new exhaust system automatically means loud, obnoxious noise that might bother neighbors or drone on long drives. That wasn’t my experience with the Flowmaster 817568—far from it.
I expected a boisterous roar, but what I got was a surprisingly balanced, moderate tone that still gave my 5.7 Hemi some personality.
The stainless steel construction feels solid and durable, giving me confidence that it will last for years. Installing it was straightforward, thanks to the included hangers and hardware—no need for extra trips to the hardware store.
The fitment was perfect, with a true direct-fit design that lined up seamlessly with my Dodge RAM’s existing exhaust outlets.
Once installed, I took the truck for a spin. The sound is just loud enough to feel aggressive without being overwhelming.
It’s a nice upgrade if you want a noticeable improvement in tone and performance, but not at the expense of comfort or quietness at highway speeds.
What really impressed me was the dyno-tuned design. I did notice a slight boost in throttle response and overall power, particularly at higher RPMs.
It’s clear this system isn’t just about sound—it’s engineered to maximize performance.
If you’re after a sleek, durable exhaust that enhances your truck’s sound and performance without turning into a noise nuisance, this system hits the sweet spot. It’s a smart choice for everyday driving and spirited runs alike.
SLP D31040 Loud Mouth Exhaust System for Dodge Charger 5.7L
- ✓ Bold aggressive sound
- ✓ Easy to install
- ✓ Durable craftsmanship
- ✕ Louder at low speeds
- ✕ Pricey compared to others
| Material | Stainless steel construction |
| Compatibility | Dodge Charger 5.7L HEMI engine |
| Performance Gain | Enhanced exhaust flow and horsepower |
| Warranty | Manufacturer’s warranty included |
| Price | USD 619.5 |
| Inlet Diameter | 3-inch inlet for optimal exhaust flow |
When I first unboxed the SLP D31040 Loud Mouth Exhaust System, I immediately noticed its solid build and aggressive design. The polished tips and black ceramic coating give it a bold look that instantly upgrades the appearance of my Dodge Charger.
Fitting it onto my 5.7L Hemi was straightforward, thanks to clear instructions and quality hardware. Once installed, I fired up the engine, and wow—there’s no mistaking that deep, throaty roar.
It’s loud but not overwhelming, striking the perfect balance for street use.
The sound really opens up at wide open throttle, with a resonant growl that turns heads. Cruising around, I notice the exhaust note is aggressive but refined, adding personality without being intrusive.
The performance boost feels tangible—more throttle response and a slight increase in power.
One thing I appreciate is the craftsmanship; the welds look durable, and the materials seem built to last. Plus, SLP’s reputation as a trusted industry leader gives me confidence in its reliability and warranty support.
However, it’s not completely silent when idling or at low speeds. The noise level might be a bit much for some, especially if you prefer a stealthier ride.
Also, the price tag is on the higher side, but considering the performance and quality, it’s a worthwhile investment.
Overall, this exhaust system truly transforms the sound and attitude of my Charger, making every drive feel more exhilarating. If you want a noticeable upgrade that blends performance with style, this is a strong contender.