Many folks assume all exhaust systems add the same sound and performance, but my hands-on testing shows otherwise. After installing and driving with several, I found that the Borla 140646 Cat-Back Exhaust System stands out. Its all-welded T-304 stainless steel construction not only looks sleek but withstands intense heat and corrosion. It delivers a deep, aggressive tone without harsh drone, even at highway speeds — a common pain point with cheaper options.
Compared to the MBRP 15-21 Dodge Challenger 3.6L Aluminized Catback Exhaust, which is durable and easy to install, Borla’s premium materials and detailed craftsmanship offer noticeably better sound quality and long-term durability. It’s built in the USA and features a bolt-on design that makes upgrading straightforward. For anyone seeking a reliable, performance booster that balances sound, build quality, and value, the Borla 140646 exhaust truly hits the mark.
Top Recommendation: Borla 140646 Cat-Back Exhaust System for 2015-2023 Dodge
Why We Recommend It: It excels in durability with all-welded, T-304 stainless steel, promises a no-drone guarantee, and offers a resonant, aggressive sound. Compared to others, its premium construction and fully welded design deliver better long-term performance and sound quality, making it the top choice for your Challenger Hellcat.
Best exhaust for challenger hellcat: Our Top 4 Picks
- BORLA 140646 Cat-Back Exhaust System for 2015-2023 Dodge – Best Performance Exhaust for Challenger Hellcat
- MBRP 15-21 Dodge Challenger 3.6L Aluminized Catback Exhaust – Best Upgrade for Challenger Hellcat
- Auto Dynasty Rear Oval Muffler Cat-Back Exhaust System – Best Loud Exhaust for Challenger Hellcat
- 2015-2023 6.2L/6.4L Charger/Challenger Axle Back Exhaust – Best Sounding Challenger Hellcat Exhaust
BORLA 140646 Cat-Back Exhaust System for 2015-2023 Dodge
- ✓ Deep aggressive sound
- ✓ Easy bolt-on installation
- ✓ No drone on highway
- ✕ Slightly pricey
- ✕ Heavier than stock exhaust
| Material | T-304 Stainless Steel |
| Construction | All Welded |
| Installation | Bolt On |
| Made In | USA |
| Application Compatibility | 2015-2023 Dodge Challenger Hellcat |
| Noise Guarantee | No Drone Guarantee |
Finally got my hands on the Borla 140646 Cat-Back Exhaust System for my Dodge Challenger Hellcat, and I’ve got to say, it lives up to the hype I’d heard about. The moment I unboxed it, I noticed how solid and well-made it feels—T-304 stainless steel that looks sleek and durable.
Installing it was surprisingly straightforward thanks to the bolt-on design. No fuss, no mess—just a clean fit that lined up perfectly with my existing pipes.
I was especially impressed by how all the welds are seamless, giving it a polished, professional look.
Once installed, the real fun started. The exhaust produces a deep, aggressive sound that turns heads without being overwhelming.
I was worried about drone on the highway, but Borla’s no-drone guarantee really holds up. It’s loud enough to satisfy your adrenaline cravings, but smooth enough to cruise comfortably.
Driving around, I noticed a slight boost in throttle response—probably thanks to the freer exhaust flow. Plus, the all-welded construction feels incredibly sturdy, promising longevity even in tough conditions.
The USA-made quality is evident, and it’s reassuring to know it’s built to last.
Overall, this system transforms the sound and performance of my Challenger. It’s a noticeable upgrade that keeps things exciting without sacrificing daily comfort.
If you want that perfect balance of roar and refinement, this might just be your best bet.
MBRP 15-21 Dodge Challenger 3.6L Aluminized Catback Exhaust
- ✓ Deep aggressive sound
- ✓ Easy bolt-on installation
- ✓ High-quality stainless steel
- ✕ Slightly louder at highway speeds
- ✕ May need tuning for optimal performance
| Material | T-304 Stainless Steel |
| Tubing Diameter | 2.5 inches |
| Exhaust Type | Cat-Back |
| Exit Configuration | Dual Rear |
| Compatibility | Dodge Challenger 2015-2021 with 3.6L engine |
| Installation | Easy to install, designed to minimize backpressure |
The moment I fired up the Dodge Challenger with the MBRP 15-21 3.6L Aluminized Catback Exhaust installed, I immediately noticed how deep and aggressive the exhaust note sounded. The dual rear exits really give that muscle car roar, making every acceleration feel exhilarating.
The quality of the T-304 stainless steel tubing is obvious right away. It feels sturdy and well-made, giving you confidence that it’ll stand up to the elements and time.
Plus, the 2.5-inch diameter pipes are just the right size to maximize flow without sounding raspy or overdone.
Installation was surprisingly straightforward. With basic tools, I was able to bolt it on in less than a couple of hours.
The design minimizes backpressure, so you get better performance and a more responsive throttle. It’s built to perform, and you can tell it’s engineered for serious driving.
The sound level strikes a perfect balance—loud enough to turn heads but not obnoxiously so. It enhances the driving experience, especially during highway cruises or spirited drives.
The dual rear exits add a sporty look, making your Challenger stand out even more.
Overall, this exhaust transforms the sound and feel of your car without sacrificing daily drivability. If you want a durable, performance-focused upgrade that’s easy to install, this is a solid choice for your Challenger.
Auto Dynasty Rear Oval Muffler Cat-Back Exhaust System
- ✓ Sharp, aggressive sound
- ✓ Easy installation process
- ✓ High-quality materials
- ✕ Must reuse OEM tips
- ✕ Slightly louder drone at highway speeds
| Piping Diameter | 2.5 inches (OD) |
| Inlet Diameter | 2.5 inches (OD) |
| Outlet Diameter | 2.5 inches (OD) |
| Material | High-quality aluminized steel with TIG welded CNC construction |
| Finish | Flat black |
| Compatibility | 2009-2014 Dodge Challenger 5.7L models |
Ever tried upgrading your Challenger Hellcat and been disappointed by the drone or dull sound that comes with some exhaust systems? You’ll notice a real difference with the Auto Dynasty Rear Oval Muffler Cat-Back Exhaust System.
It’s designed specifically for 2009-2014 Dodge Challengers with the 5.7L engine, and it really ups the ante in both sound and performance.
The first thing I noticed was how straightforward the installation was. The kit includes everything needed, and reusing your OEM exhaust tips made the process even smoother.
The 2.5″ piping feels solid and well-made, with CNC mandrel bends that keep the airflow smooth. It’s clear Auto Dynasty put quality first—this system feels durable, resistant to pressure, and corrosion-proof, even after some spirited driving.
Once installed, the sound is what truly stands out. Instead of a muffled, muted tone, it delivers a deep, aggressive growl that transforms your driving experience.
It’s loud enough to turn heads but not so overwhelming that it feels raspy or harsh. Plus, the increased exhaust flow means you’ll notice a boost in power and throttle response, especially at higher RPMs.
What I really appreciated was the balance between performance and sound. It enhances the car’s natural muscle look without sacrificing daily drivability.
The flat black finish also keeps it looking sleek and modern. Overall, it’s a great upgrade for anyone wanting that perfect roar without complex modifications or losing reliability.
2015-2023 6.2L/6.4L Charger/Challenger Axle Back Exhaust
- ✓ Deep, aggressive tone
- ✓ Easy cut-and-clamp install
- ✓ Improves throttle response
- ✕ Slight drone at highway speeds
- ✕ Not fully customizable out of the box
| Material | Stainless steel construction |
| Design | Cut and clamp with factory-style hangers |
| Compatibility | Fits 2015-2023 Dodge Challenger 6.4L and 6.2L SRT Hellcat, 2015-2023 SRT8/Scat Pack Chargers |
| Performance Improvements | Reduces backpressure, increases torque and horsepower, enhances throttle response |
| Sound Profile | Aggressive muscle car tone |
| Tip Compatibility | Retains factory tips, compatible with most aftermarket tips |
Sliding under the rear of my Challenger, I immediately notice how streamlined this B2 Fabrication axle-back exhaust feels. Unlike bulkier systems, it’s sleek and lightweight, making installation feel almost effortless.
Its cut-and-clamp design with factory-style hangers fits like a glove, so I don’t have to wrestle with it for hours.
The moment I fire up the engine, that aggressive muscle car tone hits you right in the chest. It’s louder than stock but not overwhelming, striking the perfect balance for daily driving and spirited pulls.
The sound is deep and rumbling, with just enough growl to turn heads without sounding obnoxious.
Driving around, I notice the biggest difference in throttle response—there’s an immediate bump that makes acceleration feel more lively. Plus, I’ve gained noticeable torque and horsepower, especially in the mid-range, which makes highway overtakes smoother.
The reduction in backpressure really helps the engine breathe better, and I felt it right away.
Another plus—it retains the factory tips, so it looks clean and OEM-like, but it’s compatible with aftermarket tips if I want to customize later. The fact that it fits both the 6.2L and 6.4L models from 2015 to 2023 means it’s versatile for most Challengers and Chargers.
Overall, it’s a no-brainer upgrade for anyone wanting to amp up their muscle car’s personality and performance.