Description
Performance Exhaust Upgrade. The Flowmaster Outlaw Axle-Back Exhaust System with polished tips enhances your Mustang’s sound and power output by replacing the factory rear exhaust components with high-flow mufflers and tubing. It delivers an aggressive exhaust tone with measurable horsepower and torque gains, making it an ideal choice for enthusiasts seeking improved performance and a more commanding exhaust note.
Construction and Appearance. Crafted from durable 409 stainless steel, this system features 3.00-inch mandrel-bent tubing and signature Outlaw style reflection mufflers for maximum exhaust flow and a deep sound. The quad 4.00-inch polished stainless steel tips add a refined, custom look that complements the Mustang’s aggressive styling while ensuring long-lasting corrosion resistance.
Installation. This exhaust system installs using factory hanger locations and includes all necessary hardware, allowing for an uncomplicated bolt-on installation. No drilling or modification is required, making it suitable for enthusiasts performing the upgrade at home or in a professional shop.
Warranty. Backed by a lifetime limited warranty, this system provides assurance of quality and durability for long-term use.
Application. Designed specifically for the 2024–2026 Mustang EcoBoost equipped with Active Exhaust, this axle-back system fits models with 5.0-liter V8 and 2.3-liter EcoBoost engines, compatible with both coupe and convertible body styles.
Flowmaster 818164
CA Residents: WARNING: Cancer and Reproductive Harm
- Max Increases Of Up To 17 Hp And 17 Lb-Ft Over The Stock Exhaust At The Rear Wheels
- 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
- Uses Factory Hanger Locations For Easy Installation
- 3.00-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
- Quad 4.00-Inch Polished Stainless Steel Tips Add A Custom Look
- Lifetime Limited Warranty
- Fits 24-26 Mustang EcoBoost w/ Active Exhaust
| Brand | Flowmaster |
| Exhaust System Type | Axle-Back System |
| Exhaust System Material | Stainless Steel |
| Exhaust System Tip Finish | Chrome, Polished |
| Exhaust System Tubing Diameter | 3.00 Inch |
| Exhaust Loudness | Aggressive |






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