Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is engineered to transform the sound and stance of your 2015-2020 Ford F-150, delivering the aggressive exhaust note and free-flowing performance Flowmaster is known for. Built to fit trucks equipped with the 2.7L, 3.3L or 3.5L EcoBoost, the 3.5L TiVCT, or the 5.0L V8, this complete dual 2.50-inch system replaces the restrictive factory piping with mandrel-bent stainless steel tubing for smoother flow and a bolder personality.
At the heart of the system is a Flow FX straight-through performance muffler, tuned to produce a deep, aggressive tone that ranges from moderate to aggressive depending on throttle. Whether you want a purposeful rumble at idle or a commanding roar under load, this cat-back gives your F-150 a true muscle-truck character inside and out.
Sound & Style
The dual 2.50-inch tailpipes are finished with dual 4.00-inch black ceramic coated stainless steel tips featuring an embossed logo, exiting in front of the rear passenger tire for an unmistakable, aggressive look. The straight-through muffler design keeps airflow moving for maximum power while dialing in that signature Flowmaster growl.
Key Highlights
- All stainless steel mandrel-bent tubing for smooth, high-flow performance
- Flow FX straight-through performance muffler included in the kit
- Dual 2.50-inch outlet diameter piping with dual tailpipes
- Dual 4.00-inch black ceramic coated stainless steel tips with embossed logo
- Moderate-to-aggressive sound level, inside and out
- Mounts to factory hangers for a bolt-on fit
- CARB (California) compliant — Emission Code 5
Easy Installation
Designed for a straightforward bolt-on installation, the Flow FX system uses your factory hangers and includes all necessary parts, hardware and detailed instructions. That means no cutting, no custom fabrication, and a clean, direct-fit upgrade that most enthusiasts can complete in the garage. The system does not include a heat shield.
Fitment
This cat-back exhaust is engineered for 2015-2020 Ford F-150 models with the 2.7L, 3.3L or 3.5L EcoBoost, 3.5L TiVCT, or 5.0L engines. It fits all 2- and 4-wheel drive configurations and wheelbases, with the exception of standard cab / short bed trucks. Because it carries CARB compliance, it’s a smart choice for owners who need to keep their truck emissions-legal in California and other applicable states.
If you’re looking to give your F-150 a deeper, more aggressive voice paired with the free-flowing performance benefits of a genuine Flowmaster system, the Flow FX Cat-Back delivers the sound, the style, and the straightforward fit to back it up.










