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Flowmaster's American Thunder Cat-back exhaust system for the 2015-2018 Dodge Challenger SRT 392 and R/T Scat Pack models with the 6.4L engine, as well as the SRT Hellcat with the 6.2L engine, is perfect for the person looking for an aggressive exterior and moderate interior sound with all of the performance benefits that you would expect from Flowmaster. This bolt on 409S stainless steel system features a 3.00 inch Scavenger X-pipe assembly that runs into a pair of specially built Super 40 Series mufflers with race inspired 3.50 inch internals. The systems uses 3.00 inch mandrel bent tubing for maximum performance, includes factory style active exhaust valves and then is finished off with 4.00 inch stainless steel tips that exit within the rear bumper valence. The exhaust system is manufactured in the USA and is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
| Bullet Point #2 | Dyno Tuned For Maximum Performance |
| Bullet Point #3 | Flowmaster Quality |
| Bullet Point #4 | Made in the USA |
| Catalytic Converter Included | No |
| Exhaust Pipe Material | Stainless Steel |
| Exit Position | DOR |
| Inlet Inside Diameter (in.) | 3 |
| Mount Type | Uses Factory Hangers |
| Muffler Body Material | 409S Stainless Steel |
| Muffler Body Shape | Oval |
| Muffler Count | 2 |
| Muffler Inlet Diameter (in) | 3 |
| Muffler Inlet Diameter (in.) | 3.000 |
| Muffler Material | 409S Stainless Steel |
| Muffler Part Number | Kit Only |
| Muffler Series | Super 40 Series |
| Muffler Shape | Oval |
| Single Dual | Dual |
| Single or Dual | Dual |
| System Type | Cat-back |
| Tip Diameter (in) | 4 |
| Tip Edge Style | Cut |
| Tip Finish | Polished |
| Tip Length (in.) | 5.5 |
| Tip Material | 304 Stainless |
| Tip Material | 304 Stainless Steel |
| Tip Quantity | 2 |
| Tip Type | Double Wall |
| Tubing Diameter | 3.00 in. |
| Tubing Diameter (in) | 3 |
*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.
An upgraded exhaust system is one of the easiest modifications that offers an immediate, noticeable performance improvement. Whether you’re cruising an M3 or modding a diesel truck, an upgraded exhaust will open up the restrictive factory system, allowing your engine to breathe better and deliver peak power! From lighter weight exhaust headers to improved cat-back systems, to better sounding mufflers, modifying your exhaust setup is a great place to express the character of your ride in a unique and cost effective way. Whatever you’re looking for in a modified exhaust system, we can provide the absolute best systems to make your vision a reality.
The best modders use Wheelwell to build their dream rides.
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.
