15-23 Ford Mustang 2.3L / 15-17 Mustang 3.7L Flowmaster 817823 Outlaw Axle-back Exhaust System

Flowmaster 817823 Outlaw Axle-Back Exhaust System

Part Number: 817823

The Flowmaster 817823 Outlaw Axle-Back Exhaust System is designed for 2015-2023 Ford Mustang models equipped with the 2.3L EcoBoost or 3.7L engines, including both coupe and convertible applications. This performance exhaust system delivers an aggressive exterior sound with a noticeable interior tone through race-proven Outlaw series mufflers and large 3.00-inch mandrel-bent tubing. Built with full stainless steel construction, black ceramic coated stainless steel tips, and a factory hanger mounting design, this axle-back system provides an enhanced appearance, performance-focused styling, and a straightforward installation solution for Mustang enthusiasts looking to upgrade their exhaust sound.

Key Features

• Aggressive race-proven Outlaw series mufflers for a bold exhaust tone
• Dyno-tuned design for maximum performance
• Large 3.00-inch mandrel-bent tubing for improved exhaust flow
• Pair of 4.00-inch black ceramic coated stainless steel exhaust tips for an aggressive appearance
• Full stainless steel construction for performance durability
• Uses factory hanger locations for easier installation
• Includes necessary parts, hardware, and installation instructions
• Flowmaster quality performance exhaust engineering

Benefits

• Provides an aggressive sound level that enhances the driving experience
• Improves the Mustang’s exterior styling with large black ceramic coated exhaust tips
• Offers a performance-grade axle-back upgrade without requiring replacement of the catalytic converter
• Designed for a quick and easy installation using factory mounting locations
• Backed by the Flowmaster Lifetime Limited Warranty for added product confidence

Product Specifications

• Brand: Flowmaster
• Part Number: 817823
• Product Type: Axle-Back Exhaust System
• Exhaust Series: Outlaw
• Category: Exhaust
• Grade Type: Performance
• Sound Level: Aggressive
• Material: 409 Stainless Steel piping and muffler body construction
• Pipe Diameter: 3.00 inches
• Exhaust Tip Diameter: 4.00 inches
• Exhaust Tip Material: 304 Stainless Steel
• Exhaust Tip Finish: Black Ceramic Coating
• Exhaust Tip Quantity: 2
• Exit Style: Dual Out Rear
• Exhaust Tip Shape: Round
• Exhaust Tip Cut: Angled
• Exhaust Tip Connection: Welded
• Muffler Quantity: 2
• Muffler Series: Outlaw
• Muffler Type: Reflection
• Muffler Finish: Black High-Temperature Paint Finish
• Muffler Body Size: 10.50 inches length x 4.00 inches height x 4.00 inches width
• Mount Type: Uses factory hangers
• Clamps Included: Yes
• Clamping Type: Flat Band
• Catalytic Converter Included: No
• Valve Included: No
• California Proposition 65: Yes

Install Difficulty Level

This Flowmaster Outlaw Axle-Back Exhaust System is designed for an easy installation using factory hanger locations. The system includes the required parts, hardware, and instructions to help simplify the installation process.

Vehicle Fitment

• 2015-2023 Ford Mustang 2.3L EcoBoost
• 2015-2017 Ford Mustang 3.7L
• Fits Mustang Coupes and Convertibles

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