Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is a complete stainless steel single exhaust upgrade engineered for the 2009-2014 Ford F-150 equipped with the 3.5L EcoBoost, 4.6L, 5.0L, or 5.4L engine. Designed to bolt directly to the factory catalytic converter flange, it replaces the restrictive stock piping with large 3-inch mandrel-bent tubing that flows into the straight-through Flow FX performance muffler for improved exhaust flow and an aggressive, purpose-built sound.
At the heart of the system is the Flow FX muffler, which delivers a deep, powerful tone outside the vehicle while keeping interior volume at a moderate level inside the cab. That balance makes it an ideal choice for truck owners who want a bold exhaust note without droning on the highway or overwhelming daily driving.
Key Benefits
Built from stainless steel and featuring fully mandrel-bent tubing, this cat-back system is designed to maximize flow while standing up to the demands of everyday use. The mandrel-bent tailpipe exits behind the passenger-side rear tire and is capped with a large 4.50-inch black ceramic coated exhaust tip embossed with the Flowmaster name for a finished, factory-plus appearance.
- 3-inch mandrel-bent stainless steel tubing for smooth, high-volume exhaust flow
- Straight-through Flow FX performance muffler included for a deep exterior tone and moderate in-cab sound
- 4.50-inch black ceramic coated tip, embossed with the Flowmaster logo
- Single tailpipe exiting behind the passenger-side rear tire
- Bolts to the factory catalytic converter flange and uses factory hanger locations
- CARB (California) compliant — Emission Code 5
Easy At-Home Installation
This is a true bolt-on upgrade. The Flow FX system connects at the factory catalytic converter flange and utilizes the original factory hanger locations and connections, so there’s no cutting or custom fabrication required. Everything you need is included in the box — all necessary parts, hardware, and detailed instructions — making it a straightforward installation for the confident DIY owner. Note that a heat shield is not included with this system.
Fitment
The Flow FX Cat-Back Exhaust System is engineered specifically for the 2009-2014 Ford F-150 with 3.5L EcoBoost, 4.6L, 5.0L, and 5.4L engines. It fits both 2-wheel drive and 4-wheel drive configurations and is designed to work across all wheelbases, giving a wide range of F-150 owners a direct-fit performance exhaust solution.
Backed by the Flowmaster reputation for straight-through muffler design, the Flow FX combines proven flow technology, a moderate yet muscular sound profile, and a clean, aggressive look — all in one CARB-compliant, direct-fit package for your F-150.
