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For the person looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, Flowmaster's America Thunder system for GM F-Body cars includes specially-selected Super 44 mufflers to make your Camaro or Firebird come alive. This Header-back dual exhaust system uses 2.50 in. 409S stainless steel tubing (Backed by our 10-year warranty!) and a durable H-pipe design that delivers improved throttle response, power and mileage. 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.
|Exhaust Series||American Thunder|
|Exit Position||Dual Rear|
|Heat Shield Attached||No|
|Inlet Diameter||2.500 in.|
|Muffler Part Number||842546|
|Muffler Series||Super 44 Series|
|Outlet Diameter||2.500 in.|
|Outlet Outside Diameter||2.500 in.|
|Single or Dual||Dual|
|System Type||Header Back|
|Tail Pipe Diameter||2.500 in.|
|Tip Diameter||2.500 in.|
|Title||Flowmaster 817139 Header-back System 409S - Dual Rear Exit - American Thunder- Moderate/Aggressive|
|Tubing Diameter||2.500 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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