Flowmaster 817739 American Thunder Cat Back for 15-23 V8 Challenger


  • $1,117.95
    Unit price per 
  • Save $82.05

Only 11 left!

2015-2023 Dodge Challenger Hellcat, Demon, SRT392, R/T Scat-Pack with 6.2L or 6.4L engine and 2017-2021 R/T with 5.7L engine. - Aggressive to moderate sound

This American Thunder® Cat-back exhaust system is designed for the 2015-2023 Dodge Challenger Hellcat and Demon with the 6.2L engine, the SRT392 and R/T Scat Pack models with the 6.4L engine, as well as the 2017-2021 R/T with the 5.7L engine and is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior sound with all of the performance benefits that you would expect from Flowmaster®. This bolt-on 409S stainless steel system features mandrel-bent dual 3.00-inch tubing flowing into our exclusive Scavenger Series® X-pipe assembly for maximum power and a deep unique tone. The tubing then flows into a pair of specially built Super 40 ®Series mufflers and the tailpipes include "dummy valve stands" to fool your factory actuators into thinking they're still operating the OE valves. This way, you always have that "wide-open" sound and performance without throwing a code. The stainless steel tailpipes are finished off with Quad 3.50-inch polished 304 stainless steel tips exiting within the rear bumper valence. The system uses the factory hanger locations for an easy installation and is covered by our Lifetime Limited Warranty. Includes all necessary parts and hardware for installation. Note: This system eliminates the Factory Exhaust Valves and provides "Dummy" valve stands so the Factory Acutators still work without throwing off a code.


  • Exclusive Scavenger X-pipe for Maximum Horsepower and Torque
  • Large 3.00-inch Mandrel-bent Dual Exhaust System
  • Includes "Dummy Valve Stands" for OE Actuators
  • Quad 3.50-inch Polished 304 Stainless Steel Tips
  • Dyno Tuned For Maximum Performance
  • Uses the Factory Hanger Locations
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Deep Powerful Sound
  • Easy Installation
Brand Flowmaster
Catalytic Converter Included No
Color Black
Emission Code 5
Exhaust Series American Thunder
Exit Position Dual Out Rear
Heat Shield No
Inlet Diameter (in) 1
Material 409 Stainless Steel
Mount Type Flanged
Muffler Part Number Kit Only
Muffler Quantity 2
Muffler Series Super 40 Series
Muffler Type Welded Baffle
Outlet Diameter (in) 3
Product Type Exhaust System
Shape Oval
Single Dual Dual
Sound Level Aggressive / Moderate
System Type Cat-back
Tip Cut Angle
Tip Diameter (in) 3.5
Tip Edge Style Cut
Tip Finish Polished
Tip Length (in) 9.5
Tip Logo Embossed
Tip Material Stainless Steel
Tip Quantity 4
Tip Shape Round
Tubing Diameter (in) 3
UPC 700042032112
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 Required Yes
Part Number 817739

We Also Recommend