-14%
-
Guaranteed Fitment
Always the correct part
-
In-House Experts
We know our products
-
Technical Support
We help with any installation questions
-
Wordwide Delivery
Fast shipping times
Flowmaster Flowmaster Outlaw Direct Fit Muffler 818171
$524.95
$450.99
This Flowmaster® Outlaw Direct-Fit Muffler system for the 2021-2025 Ford F-150 trucks with the 2.7, 3.5 or 5.0-liter engines is manufactured using durable 409 stainless steel throughout and features 3.00-inch mandrel bent pipes for optimum exhaust gas flow. A Flowmaster Outlaw Series muffler is used for an aggressive sound level and maximum performance. Performance increases on the dyno revealed an increase of 16 hp and 21 ft/lbs. at the rear wheels. This system connects directly to the factory dual tail pipes and uses all the existing factory hangers. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2021 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | King Ranch | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | Lariat | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Limited | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Limited | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Limited | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | Platinum | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Police Responder | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Police Responder | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Police Responder | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | Police Responder | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | Police Responder | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | SSV | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | STX | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | STX | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | STX | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | STX | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o,Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | Tremor | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | XL | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2021 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2022 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2023 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2024 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
| 2025 | Ford | F-150 | XLT | Only fits models with factory dual tailpipes, Does not fit PowerBoost Hybrid or models with OEM active exhaust o |
Specifications:
| 614 | 4.00 |
| 615 | 6.50 |
| Body Material | 409 Stainless Steel |
| 616 | 9.50 |
| Brand | Flowmaster |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| California Proposition 65 Chemical Name | Nickel (Metallic) |
| California Proposition 65 Required | Yes |
| Category | Exhaust |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Emission Code | 5 |
| Exhaust Series | Outlaw |
| Exhaust Tip Quantity | 0 |
| Exhaust Tip Quantity | Sold Separately |
| Exit Position | OEM |
| 200 | High-Temperature Paint |
| 353 | No |
| 3390 | Performance |
| Hangers Included | Yes |
| 618 | No |
| 601 | 2.75 |
| 619 | Center |
| 1171 | 2.88 |
| 620 | 1 |
| 596 | Slip-Fit |
| Main Piping Diameter | 3.00 |
| Material | 409 Stainless Steel |
| Mount Type | Uses factory hangers |
| Muffler Body Length | 6.50 |
| Muffler Color | Black |
| Muffler Finish | Black High-Temperature Paint Finish |
| Muffler Inlet Diameter | 3.00 |
| Muffler Inlet Location | Center |
| 630 | 409 Stainless Steel |
| Muffler Outlet Diameter | 3.00 |
| Muffler Outlet Location | Dual |
| Muffler Overall Length | 12.20 |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 1 |
| Muffler Series | 10 Series |
| 631 | Oval |
| 1174 | Chambered |
| 622 | 3.00 |
| Outlet Location | Dual |
| 1172 | 3.13 |
| 623 | 2 |
| 598 | Slip-Fit |
| 8971 | 55.20 |
| 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 |
| Sub Category | Mufflers |
| System Type | Direct-fit Muffler |
| Tip Style | Not Included |
| Tubing Diameter | 3.00 |
| Tubing Material | 409 Stainless Steel |
| Type | Direct-fit Muffler |
| Warning | California Proposition 65 |
| Description_INV | 21-25 F-150 DIRECT FIT MUFFLER OTL |
| Description_ASC | This system replaces ONLY the Factory muffler and over axle pipes and reuses the factory dual tail pipes and tips. Does not fit PowerBoost hybrid models. Does not fit models with OEM active exhaust option. |
| Description_DES | Flowmaster Outlaw Direct Fit Muffler |
| Description_EXT | Fits 2021-2025 Ford F-150 with 2.7, 3.5 and 5.0-liter non-PowerBoost engines with factory dual tailpipes |
| Description_MKT | This Flowmaster® Outlaw Direct-Fit Muffler system for the 2021-2025 Ford F-150 trucks with the 2.7, 3.5 or 5.0-liter engines is manufactured using durable 409 stainless steel throughout and features 3.00-inch mandrel bent pipes for optimum exhaust gas flow. A Flowmaster Outlaw Series muffler is used for an aggressive sound level and maximum performance. Performance increases on the dyno revealed an increase of 16 hp and 21 ft/lbs. at the rear wheels. This system connects directly to the factory dual tail pipes and uses all the existing factory hangers. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty. |
| Description_FAB | Large 3.0-inch Mandrel bent pipes for superior flow and power |
| Description_FAB | Flowmaster Outlaw series muffler offers race proven performance |
| Description_FAB | Powerful exhaust note with an aggressive sound level that’s a perfect balance of sound and power |
| Description_FAB | Max power gains of 16 hp and 21 lb-ft at the rear wheels |
| Description_FAB | 409 stainless steel constuction for extra durability |
| Description_FAB | Connects directly to the factory dual tailpipes for a simple installation |
| Description_FAB | Lifetime limited Warranty |