Description
Overview
The Flowmaster Outlaw® Cat-back Exhaust System is built for the driver who wants maximum sound both inside and outside the truck, backed by all the performance benefits you expect from the Flowmaster name. Engineered for the 2004-2008 Ford F-150 equipped with the 4.6L or 5.4L engine, this bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) system delivers a deep, aggressive tone while remaining emissions-legal and CARB (California) compliant.
At the heart of the kit is the legendary Super 10™ Series muffler, the loudest and most aggressive muffler in the Flowmaster lineup. Paired with mandrel-bent stainless steel tubing and dual tailpipes, it produces a bold exterior note and a commanding interior sound that lets everyone know your F-150 means business.
Key Benefits
Every component is designed with flow and durability in mind. The mandrel-bent stainless steel construction keeps exhaust gases moving freely for real performance gains, while the flanged mount design and factory hanger locations make installation straightforward. The dual 3.00-inch stainless steel tailpipes flow into large 4.00-inch black ceramic coated double wall stainless steel tips, each finished with an embossed logo for a clean, purposeful look under the rear bumper.
- Super 10™ Series muffler for the most aggressive Outlaw sound, inside and out
- Mandrel-bent stainless steel tubing and dual 3.00-inch stainless tailpipes for maximum flow
- Large 4.00-inch black ceramic coated double wall stainless steel tips with embossed logo
- 3.00-inch inlet diameter with a flanged mount design
- Uses factory hanger locations for an easy, bolt-on, at-home installation
- Emissions-legal, Emission Code 5, and CARB (California) compliant
Configuration & Sound
This is a dual-outlet, DOR/DOS system, giving you a Dual Out Rear or Dual Out Side layout. The silver-finished pipe work leads into the aggressive Super 10 muffler and out through the black ceramic coated tips. If you are chasing the loudest, most aggressive sound level Flowmaster offers, the Outlaw with the Super 10 muffler is exactly that—an unmistakable, deep exhaust note built to be heard.
Fitment
Designed specifically for the 2004-2008 Ford F-150 with the 4.6L or 5.4L engine, this cat-back system fits both 2-wheel drive and 4-wheel drive models across all wheelbases. The kit includes the muffler and all necessary parts and hardware for a complete installation. Please note a heat shield is not included, and the product carries a California Proposition 65 warning.
Backed by Flowmaster’s Lifetime Limited Warranty, the Outlaw Cat-back is a durable, emissions-legal upgrade that transforms the way your F-150 sounds and performs.
