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24-26 Ford Mustang GT 5.0L Flowmaster 818161 Outlaw Cat-Back Exhaust System

The Flowmaster 818161 Outlaw Cat-Back Exhaust System delivers an aggressive exhaust tone and performance-focused upgrade for 2024-2026 Ford Mustang GT 5.0L models. Featuring 3.0-inch stainless steel tubing, Outlaw Series mufflers, and black ceramic tips, this system enhances sound, style, and driving performance.

Top Features

  • Outlaw Series mufflers provide a deep, aggressive exhaust sound
  • Scavenger® Series X-pipe improves exhaust tone and performance
  • Dual 3.0-inch 409 stainless steel mandrel-bent tubing for improved exhaust flow
  • Quad 4.00-inch black ceramic coated exhaust tips for a custom appearance
  • Uses factory hanger locations for easier bolt-on installation
  • Includes all required hardware and installation instructions
  • Backed by Flowmaster's Lifetime Limited Warranty
  • CARB compliant emissions-legal exhaust system

Vehicle Fitment

  • 2024-2026 Ford Mustang GT
  • 5.0-liter engine
  • Fits coupe and convertible models
  • Does not fit models equipped with Active Performance Exhaust
Vendor: Flowmaster
SKU: FLO818161
Availability: 29 In Stock
$ 1,999.95 USD
On-Sale $ 1,999.95 USD
Normally $ 1,999.95 USD
Save $ 0.00
Better hurry, only 29 left in stock.

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UPC: 090127844717
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Proposition65 Warning: Cancer and Reproductive Harm

Flowmaster 818161 Outlaw Cat-Back Exhaust System

The Flowmaster Outlaw® Cat-Back Exhaust System is designed for 2024-2026 Ford Mustang GT models equipped with the 5.0-liter engine and delivers an aggressive exhaust tone with performance-focused upgrades. This emissions-legal system features dual 3.0-inch stainless steel mandrel-bent tubing, a Scavenger® Series X-pipe, and race-proven Outlaw Series mufflers to enhance exhaust flow, throttle response, and overall driving excitement. Finished with quad 4.00-inch black ceramic coated tips, this exhaust system adds a modern performance appearance while providing the deep, powerful sound expected from Flowmaster. The system is designed for an easy bolt-on fit using factory hanger locations and includes the required hardware and installation instructions for a straightforward installation experience. This system does not fit vehicles equipped with Active Performance Exhaust and fits both coupe and convertible models.

Key Features

  • Designed specifically for 2024-2026 Ford Mustang GT models with the 5.0-liter engine
  • Outlaw Series performance mufflers provide a deep, aggressive exhaust tone and increased performance potential
  • Scavenger® Series X-pipe improves exhaust tone and performance characteristics
  • Dual 3.0-inch 16-gauge mandrel-bent stainless steel tubing helps maintain maximum exhaust flow
  • 409 stainless steel construction provides durability and improved long-term corrosion resistance
  • Quad 4.00-inch black ceramic coated tips provide a custom performance appearance
  • Uses factory hanger locations for easier installation
  • Includes necessary hardware and installation instructions

Benefits

  • Helps improve throttle response, power, and mileage compared to the stock exhaust system
  • Provides an aggressive exhaust note designed for drivers seeking a more powerful Mustang experience
  • Offers performance-grade materials for long-lasting durability
  • Creates a customized rear appearance with black ceramic coated exhaust tips
  • Designed for a convenient bolt-on installation process without requiring major modifications
  • Backed by Flowmaster's Lifetime Limited Warranty for added product confidence

Product Specifications

  • Brand: Flowmaster
  • Part Number: 818161
  • Product Type: Cat-Back Exhaust System
  • Exhaust Series: Outlaw
  • Exhaust Type: Performance Cat-Back
  • Main Piping Diameter: 3.00 inches
  • Pipe Material: 409 Stainless Steel
  • Pipe Color: Silver
  • 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
  • Muffler Quantity: 2
  • Muffler Series: Outlaw
  • Muffler Type: Reflection
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Finish: Black High-Temperature Paint Finish
  • Muffler Body Size: 4.00-inch diameter x 10.50-inch length x 4.00-inch width
  • Sound Level: Aggressive / Moderate
  • Mount Type: Uses Factory Hangers
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Catalytic Converter Included: No
  • Emission Code: 5
  • California Proposition 65: Yes

Install Difficulty level

This Flowmaster Outlaw Cat-Back Exhaust System is designed for an easy bolt-on installation using factory hanger locations. The kit includes the required hardware and installation instructions, making it a manageable upgrade for experienced home installers and professional technicians.

Vehicle Fitment

  • 2024-2026 Ford Mustang GT 5.0-liter
  • Body Styles: Coupe and Convertible
  • Does not fit models equipped with Active Performance Exhaust

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.

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