Photo - Primary
Photo - out of package
Technical Bulletin
Photo - out of package
Photo - out of package
Photo - out of package
Photo - out of package
Photo - out of package

18-23 Ford Mustang GT 5.0L V8 Flowmaster 817824 Outlaw Axle-back Exhaust System

Flowmaster 817824 Outlaw Axle-back Exhaust System delivers an aggressive performance sound for 2018-2023 Ford Mustang GT 5.0L models with Factory Active Performance Exhaust Valves. Featuring Outlaw Series mufflers, stainless steel construction, and quad black ceramic coated tips, this system enhances exhaust flow, styling, and driving excitement.

Top Features:

  • Designed for 2018-2023 Ford Mustang GT 5.0L V8 models with Factory Active Performance Exhaust Valves
  • Race-proven Flowmaster Outlaw Series mufflers provide an aggressive exhaust tone
  • 3.00-inch mandrel-bent 409S stainless steel tubing for durability and high flow performance
  • Quad 4.00-inch black ceramic coated 304 stainless steel exhaust tips for a bold appearance
  • OEM-style valves included to reuse factory exhaust actuators
  • Straight-through muffler design optimized for performance
  • Uses factory hanger locations for an easy installation
  • Covered by Flowmaster Lifetime Limited Warranty

Vehicle Fitment:

  • 2018-2023 Ford Mustang GT 5.0L V8
  • Fits coupe and convertible models
  • Compatible with Factory Active Performance Exhaust Valves
Vendor: Flowmaster
SKU: FLO817824
Availability: 5 In Stock
$ 1,649.95 USD
On-Sale $ 1,649.95 USD
Normally $ 1,649.95 USD
Save $ 0.00
Better hurry, only 5 left in stock.

Secure Shopping with Hassle Free Returns

Free Shipping on orders over $149

10 customers are viewing this product
UPC: 700042038206
  • More Power Tuning
  • More Power Tuning

Proposition65 Warning: Cancer and Reproductive Harm

Flowmaster 817824 Outlaw Axle-Back Exhaust System - 2018-2023 Ford Mustang GT 5.0L V8

The Flowmaster Outlaw Axle-back Exhaust System is designed for 2018-2023 Ford Mustang GT models equipped with the 5.0L V8 engine and Factory Active Performance Exhaust Valves. This performance exhaust system delivers an aggressive exterior sound with a noticeable interior tone through race-proven Outlaw Series mufflers. Featuring high-flow 3.00-inch mandrel-bent 409S stainless steel tubing, OEM-style valve compatibility, and quad black ceramic coated 304 stainless steel tips, this system enhances the Mustang’s performance appearance while providing durability and long-lasting corrosion resistance. The axle-back design uses factory hanger locations and includes the required components for an easy installation.

Key Features:

  • Designed specifically for 2018-2023 Ford Mustang GT 5.0L models with Factory Active Performance Exhaust Valves
  • Race-proven Flowmaster Outlaw Series mufflers provide an aggressive performance exhaust sound
  • Dyno-tuned design engineered for maximum performance
  • 3.00-inch mandrel-bent 409S stainless steel tubing for improved airflow and durability
  • Quad 4.00-inch black ceramic coated 304 stainless steel exhaust tips for an aggressive appearance
  • OEM-style valves included to accommodate factory exhaust actuators
  • Straight-through muffler design for enhanced exhaust flow
  • Uses factory hanger locations for straightforward installation
  • Complete axle-back exhaust system includes necessary parts, hardware, and instructions

Benefits:

  • Provides a more aggressive exhaust note that enhances the Mustang GT driving experience
  • Improves the vehicle’s performance appearance with premium black ceramic coated exhaust tips
  • Built with stainless steel construction for durability and long-term performance
  • Maintains compatibility with the factory active exhaust valve system
  • Designed for a clean fit using factory mounting locations
  • Backed by Flowmaster’s Lifetime Limited Warranty

Product Specifications:

  • Brand: Flowmaster
  • Part Number: 817824
  • Product Type: Axle-Back Exhaust System
  • Exhaust Series: Outlaw
  • Vehicle Application: 2018-2023 Ford Mustang GT 5.0L V8 with Factory Active Performance Exhaust Valves
  • Vehicle Body Style Compatibility: Coupes and Convertibles
  • Material: 409 Stainless Steel tubing and muffler construction
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Finish: Black Ceramic Coating
  • Exhaust Tip Diameter: 4.00 inches
  • Exhaust Tip Quantity: Four
  • Main Piping Diameter: 3.00 inches
  • Muffler Quantity: Two
  • Muffler Series: Outlaw
  • Muffler Type: Reflection
  • Muffler Body Size: 4.00-inch height x 6.50-inch length x 4.00-inch width
  • Muffler Finish: Black high-temperature paint finish
  • Exit Style: Dual out rear
  • Pipe Color: Silver
  • Valve Type: OEM-style valves
  • Valve Actuator: Reuses OEM actuator
  • Mount Type: Factory hangers
  • Sound Level: Aggressive
  • Clamps Included: Yes
  • Hangers Included: Yes
  • Catalytic Converter Included: No

Install Difficulty level: Easy installation. This axle-back exhaust system is designed to install using factory hanger locations and includes the required hardware and detailed instructions for a straightforward installation.

Vehicle Fitment:

  • 2018-2023 Ford Mustang GT 5.0L V8 with Factory Active Performance Exhaust Valves
  • Fits both coupe and convertible models

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

Shipping Policy

MPT is proud to offer free shipping on most orders over $149.

  • Free shipping applies only to the contiguous United States. Shipping and handling charges will apply to orders outside the contiguous US, and the buyer is responsible for any duty fees or taxes their home country may charge to import goods.
  • With free shipping, we will choose the best shipping method for your order. We use all major carriers, including USPS, FedEx, UPS, and DHL.

Turnaround Times:

  • MPT Tunes have a standard turnaround time of 2-3 business days, beginning once we receive your MPT Tune Form.
  • We do not process orders on weekends or observed holidays, which do not count as business days.
  • Physical items that are in stock at MPT and ordered by 4PM EST will be shipped the same day. Orders placed after 4PM EST will be processed on the following business day.

Special Considerations:

  • Items not stocked at our location will follow the same processing times but may experience lead-time delays and could incur additional charges. Shipping methods may vary for these items based on what was paid and the requested delivery speed. If you need an item by a specific deadline, please contact an MPT Expert.
  • SCT Tuner Orders with the Prioritized Order option must have their tune forms submitted by 3PM EST to be completed the same day. Forms submitted after this time will be processed the next business day.
  • Orders will ship to the billing address listed on your order. If paying by credit or debit card, we can only ship to the billing address. Contact an MPT Expert for assistance if you need a different shipping address.

MPT Performance Returns and Refund Policy

A Return Authorization Number is required for all returns. Please contact an MPT Expert to obtain an RA # before sending anything back to us for any reason.

MPT tuning charges and license fees are Non-Refundable. The sale is final when MPT has sent the tune file over email. This includes both new tune purchases and tune updates.

Products other than MPT tunes, digital products, and MPT decals may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed it is non-refundable. We reserve the right to deny the return, should the product be received and it display signs of installation or unmentioned damage.

For vehicle programmers/tuners, the vehicle must be returned to stock if a program was installed. If a tuning device is returned and has not been returned to stock, a refund will not be issued, and your tuner will not be sent back without a shipping and handling fee.

The customer is responsible for all shipping charges incurred during the return process.

Amount Refunded:
•Returns post marked before 30 days from the date the item was received will be refunded the purchase price, minus a 25% restocking fee and the cost of shipping.
After 30 days, all sales are Final.
•Shipping charges along with any package insurance are non-refundable. If your purchase was shipped with our Free Shipping option, the cost of the shipping will be subtracted from the total refund amount.

HP Tuners Credits are assigned to the HP Tuners product with the submitted serial number and cannot be transferred. Once you load a tune to your vehicle with the RTD, these credits are Non-Refundable.

Digital products and files that have no ability to be taken back physically, such as an SCT Tuner Unlock, are Non-Refundable.

nGauge Tune License Fee is included in your initial purchase of MPT tunes for the nGauge. This fee is factored into the price of the tunes and becomes Non-Refundable when the stock file has been emailed to MPT.

MPT Decals are Non-Refundable, once they have been received by the customer.

Related Products

Recently Viewed Products