Flowmaster introduces our Outlaw Extreme stainless steel cat-back exhaust system for the 2003-2024 Toyota 4Runner with the 4.0L engine. This system uses an Outlaw series muffler for a deep powerful sound and increased performance.

3.0-inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and better durability. The system has a turndown style, dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps improve ground clearance and departure angle when you are driving in more extreme off-road situations. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

• Outlaw Series Performance Muffler Offers a Deep Powerful Sound and Increased Performance
• 409 Stainless Steel Construction Delivers Extra Durability and Improved Long-Term Corrosion Resistance
• 3.0-inch 16-gauge Mandrel Bent Stainless Steel Tubing Helps Maintain Maximum Exhaust Flow for Better Power
• Includes all Necessary Hardware for an at Home Installation
• Dump Style Exit Allows for Better Ground Clearance When in Extreme Off-Road Conditions
• Uses Factory Hanger Locations for Easy Installation
• Max Dyno Gains of 6 HP and 9 LB/FT at the Rear Wheels
• Lifetime Limited Warranty