
First-time modders or complementing existing upgrades
Fits the V8 HEMI Challengers (R/T 5.7L, Scat Pack 6.4L, Hellcat 6.2L SC). Not the V6 SXT.
Flowmaster
MPN: 817760,817740 · SKU: 817740
View on Flowmaster website+10
Horsepower
+12
Torque (ft-lbs)
Estimated Install Cost
Total with part: $2,301.95–$2,501.95
Sound Level
aggressive
Classic American muscle car rumble. The signature Flowmaster tone with aggressive volume.
First-time modders or complementing existing upgrades
Fits the V8 HEMI Challengers (R/T 5.7L, Scat Pack 6.4L, Hellcat 6.2L SC). Not the V6 SXT.
The Flowmaster Outlaw Cat-Back Exhaust is an aftermarket exhaust system that replaces your car's factory exhaust, providing a more aggressive sound and improved performance. It enhances horsepower and torque while also giving your Dodge Challenger a stylish look. Who it's for: This product is ideal for car enthusiasts looking to upgrade their daily driver or weekend track car for better sound and performance. Trade-offs: Installing this exhaust may result in a louder cabin noise, especially when accelerating, but it also improves engine performance and efficiency.
Outlaw Cat-Back Exhaust changes 1 primary stock component (highlighted red). Included or supporting pieces are listed below.
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The build planner counts these as covered so you don't double-pay for parts this upgrade already addresses.
Cat-Back System
Replaces stock
Mufflers
Included in kit
Exhaust Tips
Included in kit
Exhaust Hangers & Hardware
Included in kit
Specifications
1 attributes| Material | Stainless Steel1 |
Sources: 1AmericanMuscle
Compare prices across 1 retailer — every link opens the real product page
Verified fitment includes 2022 Dodge Challenger. The full compatibility list is shown in the Compatible Vehicles section above; if your specific year/trim is not listed, double-check with the retailer before purchase.
Based on product data
This is rated as an easy bolt-on install. Most owners complete it in a driveway with hand tools.
Based on product data
Yes — a lifetime warranty per the listing on americanmuscle. Refer to the retailer or manufacturer for the full terms before installation.
Based on product data
On a stock vehicle this typically adds about 10 HP and 12 lb-ft of torque at the crank, measured against a baseline pull. Real-world numbers vary by altitude, fuel quality, and supporting mods.
Based on product data
Key callouts from the retailer install notes: • Requires some mechanical knowledge for installation.
Based on product data
Cat-Back Exhaust buyer's guide
How to pick cat-back exhaust for your Challenger — what matters, what doesn't, and what to avoid.
Other cat-back exhaust for your Challenger
Compare Side-by-Side
Borla
ATAK Cat-Back Exhaust

Corsa Performance
Corsa Xtreme Cat-Back Exhaust

AWE Tuning
Touring Edition Cat-Back Exhaust

AWE Tuning
AWE Track Edition Cat-Back Exhaust
Borla
S-Type Cat-Back Exhaust (5.7L/6.4L)

Corsa Performance
Xtreme Valved Cat-Back Exhaust