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These systems are designed to directly replace original mufflers using factory hangers and connections. With easy fit in mind, these units utilize mandrel bent tubing (where applicable) for maximum performance and include specially selected mufflers. Direct-fit mufflers deliver a moderate interior and exterior tone and are suited to the enthusiast who wants their performance to be heard without breaking the bank. 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.
|Exhaust Series||American Thunder|
|Heat Shield Attached||No|
|Inlet Diameter||3.000 in.|
|Inlet Inside Diameter||3.000 in.|
|Inlet Outside Diameter||3.000 in.|
|Inlet Type||Single Offset|
|Main Piping Diameter||3.000 in.|
|Muffler Series||50 Series HD|
|Outlet Diameter||2.500 in.|
|Outlet Outside Diameter||2.250 in.|
|Outlet Type||Dual Outlet|
|System Type||D-Fit Muffler|
|Title||Flowmaster 817568 Direct-fit Muffler 409S - American Thunder - Moderate Sound|
*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.
Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.
The best modders use Wheelwell to build their dream rides.