Flowmaster
Flowmaster 818166 American Thunder Cat-Back Exhaust System
Flowmaster 818166 American Thunder Cat-Back Exhaust System
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Description & Features
Flowmaster 818166 American Thunder Cat-Back Exhaust System
This Flowmaster® American Thunder cat-back exhaust system is for the 2021-2026 Ford F-150 with the 3.5-liter PowerBoost. This system is manufactured using durable 409 stainless steel tubing and is mandrel bent for better exhaust gas flow. A specially tuned resonator is used for a deep, moderate to mild sound level and maximum performance. This system uses a 5.00-inch black ceramic coated stainless steel tip for added style. This system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.
- 00-inch and 3.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
- A 5.00-inch black ceramic coated stainless steal tip add a custom look to the vehicle
- Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
- A specially tuned resonator delivers a deep, moderate to mild performance tone and improves exhaust flow
- Lifetime Limited Warranty
Specifications
| Brand | Flowmaster |
| California Proposition 65 | Yes |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| CARB (California) Compliant | Yes |
| Catalytic Converter Included | No |
| Catalytic Converter Quantity | 0 |
| Category | Exhaust |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exhaust Tip Color | Black |
| Exhaust Tip Connection | Clamp-On |
| Exhaust Tip Cut | Angled |
| Exhaust Tip Diameter | 5.00 |
| Exhaust Tip Edge | Rolled Edge Angle Cut |
| Exhaust Tip Finish | Black Ceramic Coating |
| Exhaust Tip Intercooled | No |
| Exhaust Tip Length | 12.00 |
| Exhaust Tip Material | 304 Stainless Steel |
| Exhaust Tip Quantity | 1 |
| Exhaust Tip Resonated | No |
| Exhaust Tip Shape | Round |
| Exhaust Tip Wall | Single Wall |
| Exit Style | Single Out Rear |
| Finish | Natural |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Hangers Included | Yes |
| Heat Shield Included | No |
| Inlet Type | Clamp-On |
| Main Piping Diameter | 3.50 |
| Mounting Bracket Included | No |
| Muffler Body Height | 5.00 |
| Muffler Body Length | 15.00 |
| Muffler Body Material | 409 Stainless Steel |
| Muffler Body Shape | Oval |
| Muffler Body Width | 10.00 |
| Muffler Finish | Black High-Temperature Paint Finish |
| Muffler Flanged Inlet | No |
| Muffler Flanged Outlet | No |
| Muffler Included | Yes |
| Muffler Inlet Connection | Slip-Fit |
| Muffler Inlet Inside Diameter | 3.00 |
| Muffler Inlet Outside Diameter | 3.13 |
| Muffler Outlet Connection | Slip-Fit |
| Muffler Outlet Quantity | 1 |
| Muffler Quantity | 1 |
| Muffler Type | Chambered |
| part type | Exhaust System |
| Pipe Color | Silver |
| Pipe Material | 409 Stainless Steel |
| Sound Level | Moderate/Mild |
| Spring Bolt Kit Included | No |
| Sub Category | Exhaust and Tail Pipes |
| Tail Pipe Outlet Outside Diameter | 3.50 |
| Tail Pipe Quantity | 1 |
| Tail Pipe Tapered Outlet | No |
| Type | Cat-Back |
| Valve Included | No |
| Valve Type | Not Applicable |
| Warning | California Proposition 65 |
Packaging Information
Weight: 58 lbs
Dimensions: 58.5 x 16.25 x 11.25 IN
Safety
⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information visit www.P65Warnings.ca.gov
Warranty
Installation Instructions
⚠ Fitment Notes
- Fits PowerBoost models only
- Does not fit models with OEM active exhaust option.
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Vehicle Fitment
Vehicle Fitment
- 2021-2026 Ford F-150 King Ranch
- 2021-2026 Ford F-150 Lariat
- 2021-2023 Ford F-150 Limited
- 2021-2026 Ford F-150 Platinum
- 2024-2026 Ford F-150 STX
- 2021-2023 Ford F-150 XL
- 2021-2026 Ford F-150 XLT
