Description
Overview
The Flowmaster Outlaw Direct-Fit Exhaust Muffler Assembly is engineered specifically for the 2021-2026 Ford F-150 equipped with the 2.7L, 3.5L, or 5.0L engine. Built as a true direct-fit muffler system, it connects straight to the factory dual tail pipes and uses all the existing factory hangers, giving your truck a proven, aggressive-sounding performance exhaust without cutting corners. If you’re ready to shop for exhaust that delivers real gains and an unmistakable tone, this Flowmaster muffler is a bolt-on upgrade you can tackle at home.
Constructed from durable 409 stainless steel throughout — body, pipes, and tubing — this cat back muffler system is designed to stand up to heat, road spray, and years of hard use. The mandrel-bent 3.00-inch piping promotes optimum exhaust gas flow, while the Outlaw Series 10 Series muffler produces the deep, aggressive sound level that Flowmaster mufflers are known for. The muffler wears a black high-temperature paint finish for a clean, purposeful look under the truck.
Performance You Can Measure
This isn’t just about sound. Dyno testing on this exhaust system revealed an increase of 16 horsepower and 21 ft-lbs of torque at the rear wheels. That means better throttle response and a more engaging drive, all from a car exhaust upgrade that installs using the factory mounting points.
Key Highlights
- Flowmaster Outlaw Series, 10 Series muffler for an aggressive sound level
- 409 stainless steel body, pipes, and tubing for lasting durability
- 3.00-inch mandrel-bent piping for optimum exhaust flow
- Direct-fit design with dual outlet configuration and OEM-style exit
- Uses all factory hangers; clamps and hangers included
- Dyno-proven +16 hp and +21 ft-lbs at the rear wheels
- Flat band clamping and black high-temperature paint finish
What’s Included
The kit ships with the muffler assembly, flat band clamps, and hangers, plus installation instructions and all necessary hardware for a straightforward at-home installation. The muffler measures 12.20 inches overall with a 6.50-inch body, a center 3.00-inch inlet, and dual 3.00-inch outlets. Exhaust tips are not included, so you can pair this magnaflow-style upgrade path with the tip style of your choice or run the OEM exit look. Backed by Flowmaster’s Lifetime Limited Warranty.
Fitment
This performance exhaust is a direct-fit muffler assembly for 2021-2026 Ford F-150 trucks with the 2.7L, 3.5L, or 5.0L engine. Because it connects to the factory dual tail pipes and reuses existing hangers, installation is clean and reversible. WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm — see California Proposition 65. Emission Code: 5.
