Description
Overview
The Flowmaster Flow FX cat-back exhaust system is engineered specifically for 2021-2026 Ford F-150 trucks running the 2.7L, 3.5L, and 5.0L engines. Built as a complete kit, this catback exhaust replaces the restrictive factory piping with mandrel-bent 409 stainless steel tubing that steps from a 3.00-inch inlet down to dual 2.50-inch tail pipes, unlocking maximum flow and long-term durability. If you have been searching to shop for exhaust upgrades that deliver real, dyno-proven results, this Flow FX kit brings performance, sound, and a custom look together in one bolt-on package.
At the heart of the system sits a Flow FX series muffler, tuned to produce an aggressive-to-moderate sound level. It wakes up the truck’s exhaust note without droning on the highway, giving you a deeper, more purposeful tone that matches the added performance. Flowmaster lists max dyno gains of 24 horsepower and 29 lb-ft of torque at the rear wheels, so this is a genuine performance exhaust that adds power alongside the improved character.
Key Benefits
Everything about this Flowmaster kit is designed for a straightforward, no-cut installation. It uses factory-mounting locations and includes new hangers plus all necessary hardware, so it drops into the OE positions and bolts up cleanly. The silver 409 stainless construction resists heat and corrosion, while the dual 4.00-inch tips with embossed logo add a finished, aggressive appearance at the rear.
- Flow FX series muffler tuned for an aggressive-to-moderate sound level
- Mandrel-bent 409 stainless steel tubing: 3.00-inch inlet to dual 2.50-inch tail pipes
- Max dyno gains of 24 hp and 29 lb-ft at the rear wheels
- Dual 4.00-inch tips, 5.25-inch length, with embossed tip logo
- Includes new hangers and all necessary hardware; uses factory-mounting locations
- CARB (California) compliant and backed by Flowmaster’s Lifetime Limited Warranty
Options & Configuration
Choose the Exhaust System configuration to get the complete Flow FX kit, including the muffler, dual tail pipes, tips, and mounting hardware. The muffler measures 14.00 inches in body length with a 9.00-inch body width and 4.00-inch body height, using a center inlet and dual outlet layout for balanced, dual-exit flow.
Fitment
This kit is designed for 2021-2026 Ford F-150 pickups equipped with the 2.7L, 3.5L, or 5.0L engines. Because it uses the truck’s existing hanger locations, installation is quick and requires no permanent modifications. Whether you are comparing a Borla exhaust, Corsa exhaust, MagnaFlow exhaust, or Walker exhaust for your F-150, this Flowmaster Flow FX system delivers proven power, an aggressive tone, and durable stainless construction that holds up mile after mile. It’s a complete car exhaust and exhaust pipe upgrade that transforms how your F-150 sounds, looks, and performs.
