Description
Overview
The Flowmaster Outlaw Extreme Cat-Back Exhaust System is a stainless steel performance exhaust engineered for the 2005-2015 Toyota Tacoma equipped with the 4.0L engine. Built around Flowmaster’s Outlaw series muffler, this system is designed to deliver a deep, powerful, aggressive sound while increasing exhaust flow and performance over the restrictive factory setup. It’s a complete cat-back kit that installs using factory-mounting locations, making it a straightforward upgrade for owners who want serious sound and improved off-road capability.
Performance and Flow
At the heart of the system is 3.0-inch mandrel bent tubing constructed from durable 409 stainless steel. Mandrel bends maintain a consistent internal diameter through every curve, promoting maximum exhaust flow and helping the 4.0L breathe more freely. The Outlaw series muffler measures 29.00 inches in overall length with a center inlet and a 3.00-inch center outlet, tuned to produce the deep, aggressive tone the Outlaw Extreme line is known for.
Built for the Trail
What sets the Outlaw Extreme apart is its turndown-style, dump exit positioned right after the muffler. By eliminating the over-axle tailpipe entirely, this configuration improves ground clearance and departure angle, both of which matter when you’re pushing into more extreme off-road situations. Fewer components hanging under the truck means less to catch on obstacles and a cleaner exit for spent gases.
Configuration Notes
This is a single tail pipe system, and the muffler is included as part of the kit. The muffler features a silver pipe color with a black muffler finish. Exhaust tips are sold separately, so you can choose the tip style that best matches your Tacoma’s look. All of the necessary hardware is included in the box, and because the system uses factory hangers and factory-mounting locations, installation is designed to be easy and bolt-on.
Highlights
- 3.0-inch mandrel bent 409 stainless steel tubing for maximum flow and durability
- Outlaw series muffler included for a deep, powerful, aggressive sound
- Turndown dump exit eliminates the over-axle tailpipe to improve ground clearance and departure angle
- Single tail pipe design; 29.00-inch muffler with center inlet and 3.00-inch center outlet
- Uses factory hangers and mounting locations with all hardware included for easy installation
- CARB (California) compliant, Emission Code 5
Fitment
Engineered specifically for the 2005-2015 Toyota Tacoma with the 4.0L engine. The Outlaw Extreme cat-back is backed by Flowmaster’s Lifetime Limited Warranty, giving you confidence in both the build quality and long-term durability of the system. Please note this product carries a California Proposition 65 warning.










