For the person who is looking for a complete Cat-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.
  • Mandrel Bent Tubing
  • Limited Lifetime Warranty
  • Aggressive Exterior Exhaust Tone
  • Incl. Hangers and Hardware For Easy Installation
  • Cat Back System
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Premium Flowmaster Quality
  • Does not fit trucks with factory single exit tailpipe.

Application Summary:

Fits 2009 to 2017 Dodge Ram 1500 truck with 5.7L Hemi Magnum engine; fits 2 and 4 wheel drive models and all wheelbases. Does not fit trucks with factory single exit tailpipe.
Bullet Point #1 Mandrel bent 16 gauge stainless steel tubing
Bullet Point #2 Aggressive Sound Exterior Exhaust Tone
Bullet Point #3 Includes hangers and hardware for easy installation
Bullet Point #4 Dyno tuned for maximum performance
Country of Origin (Primary) US
Emission Code Legal US
Exhaust Series American Thunder
Exhaust Type Single
Exit Position Dual Rear
Exit Style Straight
Harmonized Tariff Code (Schedule B) 8708925000
Hazardous Material Code N
Heat Shield No
Inlet Diameter (in) 3
Inlet Size (in.) N/A
Life Cycle Status Code 2
Life Cycle Status Description Available To Order
Material Stainless Steel
MSDS Required Flag N
MSDS Sheet Number N
Muffler Count 1
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 50 Series HD
NAFTA Preference Criterion Code B
Outlet Diameter (in) 2.5
Outlet Size (in.) 2.5
Single Dual Dual
Sound Level Aggressive Sound
System Type Cat Back
Tip Diameter (in) 4
Tip Diameter (in.) 4
Tip Quantity 2
Tip Size 4.0 in.
Tubing Diameter (in) 3
Warranty Time 12

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Flowmaster 817477 Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

  • $839.75