15-23 Ford Mustang 2.3L / 15-17 Mustang 3.7L Flowmaster 817713 Outlaw Axle-back Exhaust System

Flowmaster Outlaw Axle-Back Exhaust System - Part Number 817713

The Flowmaster Outlaw Axle-Back Exhaust System (817713) is designed for 2015-2023 Ford Mustang models equipped with the 2.3L EcoBoost or 3.7L engine, delivering an aggressive performance exhaust tone with the quality and durability expected from Flowmaster. Featuring race-proven Outlaw mufflers, this system enhances the Mustang driving experience with a bold exterior sound while maintaining a moderate interior sound level. The axle-back design replaces the factory rear exhaust components for a performance-focused upgrade with an easy fit using factory hanger locations. Constructed from stainless steel materials and finished with large polished exhaust tips, this system provides improved styling, durability, and a more commanding road presence.

Key Features

• Race-proven Flowmaster Outlaw mufflers provide an aggressive performance exhaust sound.
• Dyno-tuned exhaust design helps optimize performance characteristics and exhaust flow.
• Full stainless steel construction provides long-lasting durability and corrosion resistance.
• 3.00-inch mandrel-bent tubing supports improved exhaust flow compared to the factory system.
• Large 4.00-inch polished stainless steel exhaust tips deliver a bold performance appearance.
• Uses factory hanger locations for a straightforward installation process.
• Designed for both Ford Mustang coupes and convertibles.

Benefits

• Transforms the Mustang exhaust note with a deep, aggressive sound designed for performance enthusiasts.
• Provides an upgraded appearance with premium polished stainless steel exhaust tips.
• Offers a direct axle-back replacement solution without requiring replacement of the entire exhaust system.
• Maintains reliable fitment with factory mounting locations for a cleaner installation experience.
• Built for long-term performance and backed by Flowmaster's Lifetime Limited Warranty.
  

Product Specifications

• Brand: Flowmaster
• Part Number: 817713
• Product Type: Axle-Back Exhaust System
• Exhaust Series: Outlaw
• Sound Level: Aggressive
• Material: 409 Stainless Steel tubing and muffler bodies
• Exhaust Tip Material: 304 Stainless Steel
• Exhaust Tip Finish: Polished
• Exhaust Tip Diameter: 4.00 inches
• Exhaust Tip Quantity: 2
• Main Piping Diameter: 3.00 inches
• Tail Pipe Configuration: Dual rear exit
• Muffler Quantity: 2
• Muffler Type: Reflection Outlaw mufflers
• Muffler Finish: Black high-temperature paint finish
• Clamping Type: Flat band clamps
• Mounting Type: Factory hanger locations
• Valve Included: No
• Catalytic Converter Included: No
• Finish: Natural stainless steel
  

Install Difficulty level

Easy installation. The Flowmaster Outlaw Axle-Back Exhaust System is designed as a direct-fit upgrade using factory hanger locations and included clamps, allowing many enthusiasts with basic tools to complete installation in approximately 1 hour.

Vehicle Fitment

• 2015-2023 Ford Mustang 2.3L EcoBoost engine - Coupe and Convertible
• 2015-2017 Ford Mustang 3.7L engine - Coupe and Convertible

For product questions or to report product description inaccuracies, contact the MPT Performance experts at (407) 636-7077 or by email.