Description
Overview
The Flowmaster Flow FX Extreme Cat-Back Exhaust System is engineered for the 2015-2020 Ford F-150 equipped with the 2.7L, 3.3L, 3.5L, or 5.0L engine. Built around a Flow FX series muffler, this stainless steel cat-back delivers a deep, powerful exhaust note along with increased performance, giving your F-150 a stronger presence both under the hood and behind the wheel.
At the heart of the system is 3.0-inch mandrel-bent 409 stainless steel tubing, chosen for maximum exhaust flow and long-term durability. The mandrel bends maintain a consistent internal diameter through every curve, keeping exhaust gases moving freely from the cat-back connection all the way through the muffler.
Built for Extreme Driving
What sets the Flow FX Extreme apart is its turndown-style dump exit positioned right after the muffler. This design eliminates the traditional over-axle tailpipe altogether, which improves ground clearance and departure angle when you take your F-150 into more extreme off-road situations. If you spend time on the trail or on rough terrain, this configuration keeps critical exhaust components tucked up and out of harm’s way.
Sound & Performance
The Flow FX series muffler produces an aggressive yet moderate tone — deep and powerful without being overwhelming. It measures 44.30 inches in overall length with a center inlet and center outlet, and features a 3.00-inch outlet diameter. The muffler is included in the kit and finished in silver to match the silver-finished piping.
Easy, Bolt-On Installation
This is a complete cat-back system that uses the factory mounting locations and hangers, and all necessary hardware is included. That means a straightforward, bolt-on installation with no need to modify or fabricate custom mounting points. The single tailpipe layout keeps things clean and functional.
- Fits 2015-2020 Ford F-150 with 2.7L, 3.3L, 3.5L, and 5.0L engines
- 3.0-inch mandrel-bent 409 stainless steel tubing for maximum flow and durability
- Flow FX series muffler delivers a deep, powerful, aggressive/moderate sound
- Turndown dump exit eliminates the over-axle tailpipe for better ground clearance and departure angle
- Uses factory hangers and includes all necessary hardware for easy installation
- CARB (California) compliant — Emission Code 5
Warranty
The Flow FX Extreme cat-back is backed by Flowmaster’s Lifetime Limited Warranty, giving you added confidence in the stainless steel construction and quality of the system. Whether you’re chasing a more assertive exhaust note, improved flow, or better off-road clearance, this system brings all three together for the F-150.
