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2015-19 Challenger SXT 3.6L - American Thunder Exhaust System 817737YouTube Button

Flowmaster American Thunder Cat-back Exhaust System

2015-2020 Dodge Challenger SXT with 3.6L engine.

PART# 817737

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$993.00   Suggested Retail
$892.95   Your Price
Estimated shipping date: 01/15/2021
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Aggressive to moderate sound


Flowmaster's American Thunder Cat-back exhaust system for the 2015-2020 Dodge Challenger SXT is perfect for the person looking for a moderate exterior sound level while maintaining a mild interior sound with all of the performance benefits that you would expect from Flowmaster. This bolt-on cat-back 409S stainless steel system for the 3.6L engine features 2.50-inch mandrel-bent tubing and includes a Scavenger X-pipe crossover for a unique deep sound and maximum power. The dual Super 44 Series mufflers flow into dual 2.50-inch mandrel-bent tailpipes which are finished off with tuned resonators and stainless steel tips that exit within the rear bumper valance. The exhaust system is covered by our Lifetime Limited Warranty, is designed for an easy fit and includes all necessary parts and hardware for installation.


  • Dyno Tuned For Maximum Performance
  • Exclusive Scavenger X-pipe Crossover
  • Uses the Factory Hanger Locations
  • Stainless Steel Construction
  • Specially Tuned Resonators
  • Lifetime Limited Warranty
  • Flowmaster Reliability
  • Delta Flow Technology


Catalytic Converter IncludedNo
ColorBlack muffler, natural tubing
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear
Heat ShieldNo
Inlet Diameter (in)2.5
Material409 Stainless Steel
Mount TypeFlanged
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 44
Muffler TypeWelded Baffle
Outlet Diameter (in)2.5
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeCat-back
Tip CutAngle
Tip Diameter (in)2.5
Tip Edge StyleCut
Tip FinishPolished
Tip Length (in)3.5
Tip LogoNone
Tip MaterialStainless Steel
Tip Quantity2
Tip ShapeRound
Tubing Diameter (in)2.5
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number817737



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

Fits 2015-2020 Dodge Challenger SXT with 3.6L engine.


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