Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is engineered to transform the exhaust performance and sound of the 2021-2026 Ford F-150 equipped with the 2.7L, 3.5L, or 5.0-liter engine. Built around a Flow FX series muffler, this complete cat-back package delivers an aggressive-to-moderate exhaust note along with increased performance, giving your truck the deeper, more purposeful tone it deserves without sacrificing everyday drivability.
At the heart of the system is 3.00-inch mandrel-bent 409 stainless steel tubing. The mandrel bends maintain a consistent diameter through every curve for maximum exhaust flow, while the 409 stainless construction stands up to heat, corrosion, and the demands of hard use. The result is a durable, high-flowing exhaust path designed to last and to perform.
Sound, Performance & Style
The Flow FX series muffler is tuned to produce an aggressive yet moderate sound level — commanding under acceleration and controlled at cruise. On the dyno, this system achieves max gains of 13 horsepower and 16 lb-ft of torque measured at the rear wheels, freeing up power your factory exhaust leaves on the table. To finish the look, the system exits through a larger 4.50-inch black ceramic-coated tip with an embossed logo, adding a custom, premium appearance at the rear of the truck.
Key Highlights
- 3.00-inch mandrel-bent 409 stainless steel tubing for maximum flow and long-term durability
- Flow FX series muffler measuring 24.00 inches overall with center inlet and center 3.00-inch outlet
- Aggressive-to-moderate sound level for a bold but livable tone
- Max dyno gains of 13 hp and 16 lb-ft at the rear wheels
- Larger 4.50-inch black ceramic-coated tip with embossed logo for a custom finish
- Single tail pipe configuration with all necessary hardware included
Easy, Bolt-On Installation
This cat-back system is designed to install using factory mounting locations and hangers, making for a straightforward, bolt-on upgrade. All of the necessary hardware is included in the kit, so you have what you need to complete the job and get back on the road.
Fitment
The Flow FX cat-back is engineered specifically for 2021-2026 Ford F-150 trucks with the 2.7L, 3.5L, and 5.0-liter engines. It is CARB (California) compliant, carries Emission Code 5, and ships as a complete kit with a single, center-exit muffler. Please note the California Proposition 65 warning applies to this product.
Backed by Flowmaster’s Lifetime Limited Warranty, the Flow FX Cat-Back Exhaust System combines proven flow, aggressive sound, and a clean custom look in one complete, easy-to-install package for your F-150.
