








Flowmaster
'21-23 Ford Bronco Flowmaster American Thunder Axle-Back Exhaust System
'21-23 Ford Bronco Flowmaster American Thunder Axle-Back Exhaust System
MCQUEEN
190 South McQueen Road
Suite 109
Gilbert AZ 85233
United States
Flowmaster introduces the American Thunder axle-back exhaust system for the 2021-2023 Ford Bronco with the 2.3 or 2.7-liter engine. This system uses a 60 Series style muffler for an aggressive to moderate exhaust tone and increased performance. Maximum dyno gains of 19 hp and 19 lb-ft. were measured at the rear wheels.
3.00-inch mandrel bent 409 stainless steel tubing is used to maximize exhaust flow and durability. A polished 3.00-inch stainless steel tip is used to to add a custom look to this iconic vehicle. All of the necessary hardware is included and factory mounting locations are used for an easy installation.
FITMENT:
| Year | Make | Model | Submodel | Engine |
|---|---|---|---|---|
| 2021 | Ford | Bronco | Badlands | 140/2.3L L4 |
| 2021 | Ford | Bronco | Badlands | 164/2.7L V6 |
| 2021 | Ford | Bronco | Base | 140/2.3L L4 |
| 2021 | Ford | Bronco | Base | 164/2.7L V6 |
| 2021 | Ford | Bronco | Big Bend | 140/2.3L L4 |
| 2021 | Ford | Bronco | Big Bend | 164/2.7L V6 |
| 2021 | Ford | Bronco | Black Diamond | 140/2.3L L4 |
| 2021 | Ford | Bronco | Black Diamond | 164/2.7L V6 |
| 2021 | Ford | Bronco | First Edition | 164/2.7L V6 |
| 2021 | Ford | Bronco | Outer Banks | 140/2.3L L4 |
| 2021 | Ford | Bronco | Outer Banks | 164/2.7L V6 |
| 2021 | Ford | Bronco | Wildtrak | 164/2.7L V6 |
| 2022 | Ford | Bronco | Badlands | 140/2.3L L4 |
| 2022 | Ford | Bronco | Badlands | 164/2.7L V6 |
| 2022 | Ford | Bronco | Base | 140/2.3L L4 |
| 2022 | Ford | Bronco | Base | 164/2.7L V6 |
| 2022 | Ford | Bronco | Big Bend | 140/2.3L L4 |
| 2022 | Ford | Bronco | Big Bend | 164/2.7L V6 |
| 2022 | Ford | Bronco | Black Diamond | 140/2.3L L4 |
| 2022 | Ford | Bronco | Black Diamond | 164/2.7L V6 |
| 2022 | Ford | Bronco | Outer Banks | 140/2.3L L4 |
| 2022 | Ford | Bronco | Outer Banks | 164/2.7L V6 |
| 2022 | Ford | Bronco | Wildtrak | 164/2.7L V6 |
KEY FEATURES:
- 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
- A 3.00-inch polished stainless steel tips add a custom look
- Includes complete hardware and factory styled hangers in the stock locations for an easy installation
- A 60 Series performance muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
- Delta Flow Technology Increases Performance and Reduces Drone
SPECS:
| Brand | Flowmaster |
|---|---|
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exit Position | SOR |
| Mount Type | Uses New Hangers (Included) |
| Muffler Body Length (in) | 13.5 |
| Muffler Color | Black |
| Muffler Finish | Painted |
| Muffler Inlet Diameter (in) | 3.00 |
| Muffler Inlet Location | Centered |
| Muffler Material | 409S Stainless Steel |
| Muffler Outlet Diameter (in) | 3.00 |
| Muffler Outlet Location | Offset |
| Muffler Overall Length (in) | 34 |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 1 |
| Muffler Series | 60 Series |
| Muffler Shape | Oval |
| Muffler Type | Reflection |
| Product Type | Exhaust System |
| Single Dual | Single |
| Sound Level | Aggressive / Moderate |
| System Type | Axle-back |
| Tip Cut | Angle |
| Tip Diameter | 3.00 |
| Tip Edge Style | Cut |
| Tip Finish | Polished |
| Tip Length | 4.75 |
| Tip Logo | Embossed |
| Tip Material | 304 Stainless |
| Tip Quantity | 1.00 |
| Tip Shape | Round |
| Tip Style | Single Wall |
| Tubing Diameter (in) | 3.00 |
| Tubing Material | 409S Stainless Steel |
| UPC | 090127140284 |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| Nickel (Metallic) | |
| California Proposition 65 Required | Yes |
| Part Number | 818121 |
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