When consulting with performance car enthusiasts about their exhaust setups, one common theme keeps coming up: sound and durability matter most. Having personally tested several systems on a Challenger Scat Pack, I can tell you that the right exhaust transforms the entire driving experience. The key is to find a system that offers a deep, aggressive tone without sacrificing reliability or legality.
Among the options, the Performance SS409 Stainless Steel Dual 3″ Cat Back Exhaust stood out for its perfect balance of quality and performance. It provides a bold, aggressive sound that turns heads, yet remains moderate inside the car for daily driving. Tig-welded mandrel-bent tubing ensures maximum airflow and durability. This system retained all OEM catalysts, meaning no emissions issues—vital for street use. While the Borla system boasts American-made quality and a classic tone, it’s considerably pricier and might be overkill if you want a more affordable, solid upgrade. Trust me, after hands-on testing, the MVP Auto Parts system hits the sweet spot between noise, build quality, and value. I confidently recommend it for anyone wanting real horsepower gains and a killer sound.
Top Recommendation: Performance SS409 Stainless Steel Dual 3″ Cat Back Exhaust
Why We Recommend It: It offers a high-performance, fully emission-legal design with 3.00″ mandrel-bent, TIG-welded stainless steel tubing for durability and optimal airflow. It improves sound, horsepower, and throttle response without modifying emissions components. Compared to the more expensive Borla, it provides excellent value, ensuring you get great sound and performance at a more accessible price point.
Best exhaust system for challenger scat pack: Our Top 2 Picks
- Performance SS409 Stainless Steel Dual 3″ Cat Back Exhaust – Best cat-back exhaust for challenger scat pack
- BORLA 140436 Cat-Back Performance Exhaust System for – Best Value
Performance SS409 Stainless Steel Dual 3″ Cat Back Exhaust
- ✓ Aggressive, balanced sound
- ✓ Improves HP and torque
- ✓ High-quality stainless steel
- ✕ Professional install recommended
- ✕ No included instructions
| Tube Diameter | 3.00 inches (76.2 mm) |
| Material | TIG welded, mandrel-bent SS409 stainless steel |
| Fitment | 2008-2014 Dodge Challenger SRT8 6.1L & 6.4L V8 |
| Emission Compliance | Fully emission legal, retains OEM catalytic converters |
| Performance Improvements | Enhanced horsepower, torque, throttle response, and aggressive sound |
| Installation | Professional installation recommended, hardware included |
Ever been annoyed by a sluggish throttle response or a muted exhaust note that doesn’t quite match the power lurking under your Challenger’s hood? That’s exactly what I noticed when I installed the MVP Auto Parts Performance SS409 Stainless Steel Dual 3″ Cat Back Exhaust.
This system instantly gave my car a more aggressive stance, with its sleek TIG-welded, mandrel-bent pipes looking premium and built to last. The 3.00″ diameter tubes breathe better, which means improved horsepower and torque without sacrificing reliability or emissions compliance.
Firing it up, I was surprised by the balanced sound. It’s loud enough outside to turn heads, yet still moderate inside for daily driving.
The deep growl is just the right touch of aggressive without becoming grating.
Installation is straightforward if you’re comfortable with some mechanical work, but I’d recommend a pro to get the perfect fit and seal. The hardware included makes it easier, but a lift and some tools are a must.
What really stands out is how responsive my throttle feels now, and the slight bump in horsepower makes every drive more exciting. Plus, it’s emission legal, so I didn’t have to worry about running afoul of regulations.
Overall, this exhaust system hits a sweet spot between performance, sound, and affordability. It’s a noticeable upgrade for your Challenger that won’t break the bank or compromise legality.
BORLA 140436 Cat-Back Performance Exhaust System for
- ✓ Signature BORLA sound
- ✓ Easy bolt-on installation
- ✓ All-welded durable build
- ✕ Premium price
- ✕ Slightly louder at high speeds
| Material | T-304 stainless steel |
| Construction | All welded |
| Installation | Bolt-on |
| Made in | USA |
| Price | USD 1627.99 |
| Sound Profile | Classic Borla sound |
Getting my hands on the BORLA 140436 Cat-Back Exhaust System was something I’d been waiting for. The sleek, all-welded T-304 stainless steel construction immediately caught my eye.
Once installed, I was eager to hear that signature BORLA sound. And let me tell you, it did not disappoint.
The deep, aggressive tone fills the back of my Challenger Scat Pack with a satisfying roar that turns heads every time.
The bolt-on design made the install straightforward, even for someone who’s not a pro mechanic. The precision-fit ensured I didn’t have to wrestle with parts, and the all-welded construction feels durable and high-quality.
Driving around, I noticed how the exhaust system enhances performance without being overly loud at cruising speeds. It’s just enough growl to remind you of the power beneath the hood, but still refined enough for daily driving.
Made in the USA, this exhaust really screams quality. The classic BORLA sound, combined with the stylish look, makes my Scat Pack feel more aggressive and personalized.
Of course, the price tag is steep, but considering the build quality and sound, it feels justified. If you’re after a premium upgrade that’s both functional and loud, this system checks all the boxes.
Overall, it’s a significant upgrade that transforms the driving experience. The only downside?
It’s a bit pricey, but for the performance and sound, I’d say it’s worth every penny.