Description
Performance Exhaust System. The Flowmaster American Thunder Dual Exhaust System with side or rear exit offers enhanced exhaust flow and a deep, aggressive tone for 2021-2026 Ford F-150 models equipped with 2.7L, 3.5L EcoBoost, and 5.0L engines. Designed to deliver up to 11 horsepower and 10 lb-ft of torque gains at the rear wheels, it improves power and sound quality for a more engaging driving experience.
Construction and Appearance. Made from mandrel-bent 409 stainless steel tubing and featuring the Super 40 chambered muffler, this system balances durability and performance. It includes a black high-temperature paint finish on the muffler and polished 3.5-inch stainless steel tips. Dual exit options allow personalization of the exhaust appearance with side or rear tailpipe placement.
Installation. Installation utilizes factory hanger locations and includes all necessary hardware for a straightforward fit. No modifications such as drilling or cutting are required, ensuring a hassle-free setup.
Warranty and Application. Backed by a lifetime limited warranty for long-term reliability. This exhaust system fits 2021-2026 Ford F-150 models with 2.7L, 3.5L EcoBoost, and 5.0L engines. It includes Tremor models and excludes Raptor due to fitment differences.
Flowmaster 817979
CA Residents: WARNING: Cancer and Reproductive Harm
- American Thunder Cat-Back Dual Exit Stainless Steel Exhaust System
- Super 40 Series Performance Muffler Provides Deep, Powerful Sound
- Maximum Dyno Gains of 11 Hp and 10 Lb.Ft. at the Rear Wheels
- Mandrel Bent 409 Stainless Steel Tubing for Maximum Exhaust Flow and Durability
- 3.0-Inch Inlet Pipe with Dual 2.5-Inch Tailpipes
- Includes Both Side Exit and Rear Exit Tailpipe Options for Customizable Appearance
- 3.5-Inch Polished Stainless Steel Tips with Angle Cut Design
- Uses Factory Mounting Locations for Easy Installation
- Includes All Necessary Hardware
- Clears Factory Spare Tire
- Black High-Temperature Paint Finish on Muffler
- Lifetime Limited Warranty
- Delta Flow Technology Reduces Drone and Increases Performance
- Fits 2021-2026 Ford F-150 with 2.7L, 3.5L EcoBoost, and 5.0L Engines, Including Tremor and Excluding Raptor
| Brand | Flowmaster |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | Chrome, Polished |
| Exhaust Tubing Diameter | 2.50 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | Dual |
| Exhaust Exit Location | Both Sides or Rear – After Tire |
| Exhaust Loudness | Moderate |
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