2009-19*  RAM 1500 4.7L, 5.7L - American Thunder Cat-back Exhaust System 817490YouTube Button

Flowmaster American Thunder Cat-back Exhaust System

2009-2019* (*Classic body) RAM 1500, 4.7L, 5.7L Hemi engine. (See applications below)

PART# 817490

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Fits 2009-2019* (*Classic body) RAM 1500, 4.7L, 5.7L Hemi engine (Does NOT fit trucks with factory dual tailpipes)


Wake up the power and performance of your 4.7L or 5.7L Hemi-powered 2009-2019* (classic body) RAM 1500 with this American Thunder Cat-back exhaust system. The system is fully constructed from 16-gauge mandrel-bent stainless steel tubing flowing into a 50 HD Series performance muffler with a single inlet/dual out for minimum drone in the cab, but with a moderately aggressive exterior tone. This custom system features dual 2.50-inch mandrel bent tailpipes with a pair of large 4.00-inch diameter polished stainless steel tips with your choice of exits, either dual out the side behind the wheels for towing, or exiting straight out the back under the rear bumper for a muscular look. The system includes all necessary parts and hardware required for an easy installation that you can do at home. Note: Does not fit trucks with factory dual tailpipes. Does Not fits 2019 New body RAM.


  • Connects After Factory Catalytic Converter
  • Includes hangers and hardware for easy installation
  • Moderate Sound exterior exhaust tone
  • Mandrel bent 16 gauge stainless steel tubing


California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDual Out Rear / Dual Out Side
Heat ShieldNo
Inlet Diameter (in)3
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series50 Series HD
Outlet Diameter (in)2.5
Product TypeExhaust System
Single DualDual
Sound LevelModerate Sound
System TypeCat-back
Tip Diameter (in)3
Tip Quantity2
Tubing Diameter (in)2.5
Part Number817490


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 2009-2019* (*Classic body) RAM 1500, 4.7L, 5.7L Hemi engine (Does NOT fit trucks with factory dual tailpipes)


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      Some parts are not legal for use in California or other states with similar regulations.