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Flowmaster Flowmaster American Thunder Direct Fit Muffler 818204
$736.62
$650.99
Flowmaster's® American Thunder Direct-Fit Muffler exhaust system for the 2025 RAM 1500 with the 3.0-liter High Output engine gives you a great value packed way to help you customize your RAM 1500 to your personality. This performance muffler system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.00-inch inlet pipe leading into a 409 stainless steel Super 10 based muffler for great sound and maximum performance. The dual exit muffler then connects to the factory tailpipes for a simple and effective performance upgrade. Max dyno gains of 13 hp and 12 lb-ft at the rear wheels deliver power you can feel. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2025 | Ram | 1500 | Limited | High Output American Thunder Kit |
| 2025 | Ram | 1500 | Limited Longhorn | High Output American Thunder Kit |
| 2025 | Ram | 1500 | Tungsten | High Output American Thunder Kit |
Specifications:
| 614 | 5.00 |
| 615 | 10.75 |
| Body Material | 409 Stainless Steel |
| 616 | 10.00 |
| Brand | Flowmaster |
| California Proposition 65 Chemical Name | Nickel (Metallic) |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| California Proposition 65 Required | Yes |
| Catalytic Converter Quantity | 0 |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Color | Black |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exhaust Tip Quantity | Sold Separately |
| Exhaust Tip Quantity | 0 |
| Exit Position | DOR |
| Exit Style | Dual Out Rear |
| 200 | High-Temperature Paint |
| 353 | No |
| 3390 | Performance |
| Hangers Included | Yes |
| 618 | No |
| 601 | 2.75 |
| Inlet Location | Dual |
| 1171 | 2.88 |
| Inlet Position | Dual |
| 620 | 2 |
| 596 | Flanged |
| Main Piping Diameter | 3.00 |
| Material | 409 Stainless Steel |
| Mount Type | Uses Factory Hangers |
| Mounting Bracket Included | No |
| Muffler Body Height | 5.00 |
| Muffler Body Length | 13.50 |
| Muffler Body Length (in) | 13.5 |
| Muffler Body Material | 409 Stainless Steel |
| Muffler Body Shape | Oval |
| Muffler Color | Black |
| Muffler Finish | Painted |
| Muffler Inlet Diameter | 3 |
| Muffler Inlet Location | dual |
| 630 | 409 Stainless Steel |
| Muffler Outlet Diameter | 3 |
| Muffler Outlet Location | dual outlet |
| Muffler Overall Length (in) | 59 |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 1 |
| Muffler Series | Super 40 |
| 631 | Oval |
| 1174 | Reflection |
| 622 | 2.75 |
| Outlet Location | Dual |
| 1172 | 2.88 |
| Outlet Position | Dual |
| 623 | 2 |
| 598 | Slip-Fit |
| 8971 | 59 |
| part type | Exhaust Muffler Assembly |
| Pipe Material | 409 Stainless Steel |
| Product Type | Exhaust System |
| Single Dual | Dual |
| Sound Level | Aggressive |
| Spring Bolt Kit Included | No |
| System Type | Direct-Fit Muffler |
| Tip Finish | N/A |
| Tip Style | Not Included |
| Tubing Diameter | 3.00 |
| Tubing Diameter (in) | 3 |
| Tubing Material | Uses factory hangers |
| Vehicle Type | Truck/SUV |
| Warning | California Proposition 65 |
| Description_INV | 2025 RAM 3.0L HO AMT DIRECT FIT MUFFLER |
| Description_DES | Flowmaster American Thunder Direct Fit Muffler |
| Description_EXT | Fits 2025 RAM 1500 3.0L High Output, American Thunder Direct-Fit muffler exhaust system, 409 stainless steel |
| Description_MKT | Flowmaster's® American Thunder Direct-Fit Muffler exhaust system for the 2025 RAM 1500 with the 3.0-liter High Output engine gives you a great value packed way to help you customize your RAM 1500 to your personality. This performance muffler system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.00-inch inlet pipe leading into a 409 stainless steel Super 10 based muffler for great sound and maximum performance. The dual exit muffler then connects to the factory tailpipes for a simple and effective performance upgrade. Max dyno gains of 13 hp and 12 lb-ft at the rear wheels deliver power you can feel. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty. |
| Description_FAB | 3.0-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability |
| Description_FAB | Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation |
| Description_FAB | An tuned Super 40 series style chambered muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow |
| Description_FAB | Max increases of up to 18 hp and 15 lb-ft over the stock exhaust at the wheels |
| Description_FAB | Lifetime Limited Warranty |
| Description_FAB | Tuned performance muffler offers quality sound inside and outside of the truck |