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Flowmaster's new American Thunder Cat-back exhaust system for the 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with 6.0L V8 is perfect for the person looking for a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD muffler and dual 3.00 in. DOR/S (Dual Out Rear/ Dual Out Side) stainless steel mandrel bent tailpipes. The system is finished off with beautifully polished 4.00 in. stainless steel tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
|Exhaust Series||American Thunder|
|Exit Position||Dual Out Rear|
|Exit Position||Dual Out Side|
|Heat Shield Attached||No|
|Inlet Diameter||3.500 in.|
|Inlet Inside Diameter||4.000 in.|
|Muffler Part Number||Kit Only|
|Muffler Series||50 Series HD|
|Outlet Diameter||3.000 in.|
|Outlet Outside Diameter||4.000 in.|
|Single or Dual||Dual|
|System Type||Cat Back|
|Tail Pipe Diameter||3.000 in.|
|Tip Diameter||4.000 in.|
|Tip Length||13.000 in.|
|Title||Flowmaster 817541 Cat-back System 409S - Dual Rear/Side Exit-American Thunder-Moderate/Aggressive|
|Tubing Diameter||4.000 in.|
*Some manufacturer restrictions apply.
Manufacturer of performance exhaust systems, mufflers, cold air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.
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