2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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Find Axle-Back Exhaust for your Mustang
Flowmaster Outlaw Axle-Back Exhaust System with Polished Tips (24-25 Mustang EcoBoost w/o Active Exhaust)Find parts that fit my vehicle
Item 438421-23
$828.86
500+ Reviews
On Sale
-10% $828.86 set Was $920.95
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Exhaust System
- Enhanced Performance
- Aggressive Sound Profile
- Limited Lifetime Warranty
- Fits 2024-2025 Mustang EcoBoost Models without 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 |
Description
Performance. The Flowmaster Outlaw Axle-Back Exhaust System is engineered to significantly improve exhaust flow, resulting in pronounced increases in both horsepower and torque. This performance-oriented design is essential for drivers eager to push their vehicle to its limits. By optimizing the exhaust system, this upgrade provides a smoother, more efficient path for exhaust gases to escape, allowing the engine to breathe better. Not only does this enhance the overall driving experience with more responsive acceleration, but it also contributes to a more efficient operation of the engine, leading to potential improvements in fuel economy under certain driving conditions. This makes it an indispensable addition for enthusiasts who prioritize superior vehicle performance.
Power. Specially crafted to emit a deep, resonant roar, the Flowmaster Outlaw Axle-Back Exhaust System endows your vehicle with a bold and unmistakable auditory signature. This exhaust system is the ideal choice for those who wish to make a statement on the road with a sound that turns heads. The deep, robust tones it produces are not just about volume; they convey a sense of power and strength that is the hallmark of high-performance vehicles. Whether cruising through city streets or powering down open highways, the distinct sound profile of this system announces your presence with authority and style, making it an excellent choice for those who appreciate the symphony of a powerful engine amplified by a top-tier exhaust system.
Installation. Putting this Flowmaster Outlaw Axle-Back Exhaust System with Polished Tips on your Mustang EcoBoost is easy and requires no drilling.
Warranty There is a limited lifetime warranty on this product.
Application. The Flowmaster Outlaw Axle-Back Exhaust System with Polished Tips fits 2024-2025 Mustang EcoBoost models without Active Exhaust.
Fitment:
- 2024 Ford Mustang
- 2025 Ford Mustang
Flowmaster 818163
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Left Muffler Assembly
- (1) Right Muffler Assembly
- (2) Polished Exhaust Tips
- (2) Band Clamps
- Instruction Manual
4.8
Customer Reviews (500+)
Questions & Answers
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Will It Fit My Mustang
- EcoBoost - 24, 25
