1 of 3
1 of 3
Flowmaster 817572 - American Thunder Cat Back Exhaust System
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 generally deliver an 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.
|Bullet Point #1||Stainless Steel Construction|
|Bullet Point #2||Fits Coupe and Convertible|
|Bullet Point #3||Includes Scavenger X-Pipe|
|Bullet Point #4||Lifetime limited warranty|
|Exhaust Series||American Thunder|
|Exit Position||Dual Rear Exit|
|Heat Shield Attached||No|
|Inlet Diameter (in)||2.5|
|Inlet Inside Diameter (in.)||2.5|
|Muffler Part Number||Kit Only|
|Muffler Series||40 Series Delta Flow|
|Outlet Diameter||3.0 in.|
|Outlet Diameter (in)||3|
|Outlet Outside Diameter (in.)||2.5|
|Sound Level||Aggressive Sound|
|System Type||Cat Back|
|Tip Diameter (in)||4|
|Tip Diameter (in.)||4|
|Tip Size||4.0 in.|
|Title||Flowmaster 817572 Cat-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound|
|Tubing Diameter||2.50 in.|
|Tubing Diameter (in)||2.5|
*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.