SKU: 26164301647

2018-2023 Ford Mustang Axle-Back Exhaust Flowmaster Stainless Steel

Sale price$854.98 Regular price$949.98
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

2018-2023 Ford Mustang Axle-Back Exhaust Flowmaster Stainless SteelOverview: This Flowmaster American Thunder Axle back exhaust system is for 2018 2023 Ford Mustang GT coupes and convertibles with the 5. 0L engine and Factory Active Performance Exhaust Option. System features include a pair of specially designed Outlaw series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves.

Overview:

This Flowmaster® American Thunder® Axle-back exhaust system is for 2018-2023 Ford Mustang GT coupes and convertibles with the 5.0L engine and Factory Active Performance Exhaust Option. System features include a pair of specially designed Outlaw® series mufflers giving you high flow with a moderately aggressive exterior and interior tone when the valves are closed, and an aggressive "wide open" exterior sound level when you open up the valves. Other features include large 3.00-inch mandrel-bent 409S stainless steel tubing for high flow, durability, and longevity. Add to that, a pair of our high-quality valves to accommodate the factory exhaust actuators for when you really want to open up the sound. The system is finished off with quad 4.00-inch polished 304 stainless steel tips for an aggressive look that demands attention, the same as the exhaust note. Includes all necessary parts, hardware and detailed instructions for an easy installation you can do at home. Covered by our Lifetime Limited Warranty. Note: Fits both coupes and convertibles.

Features:

  • Mandrel-bent Dual 3.00-inch Stainless Steel Tubing
  • Scavenger Series X-pipe for Maximum Power
  • Includes Active Exhaust Valves in Tailpipes
  • Deep Aggressive Exterior/Interior Tone
  • Race-proven Outlaw Series Mufflers
  • Exits within the Factory Bezels
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Flowmaster Quality
  • Specs:

  • Brand: Flowmaster
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Emission Code: 5
  • Exhaust Series: American Thunder
  • Exhaust Tip Color: Silver
  • Exhaust Tip Connection: Welded
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Edge: Angle Cut
  • Exhaust Tip Finish: Polished
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 4
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Double Wall
  • Exit Style: Dual Out Rear
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Heat Shield Included: No
  • Inlet Type: Clamp-On
  • Main Piping Diameter: 3
  • Mount Type: Uses Factory Hangers
  • Mounting Bracket Included: No
  • Muffler (Left) Body Height: 5
  • Muffler (Left) Body Length: 11.375
  • Muffler (Left) Body Width: 12
  • Muffler (Left) Type: Reflection
  • Muffler (Right) Body Height: 5
  • Muffler (Right) Body Length: 11.375
  • Muffler (Right) Body Width: 12
  • Muffler (Right) Type: Reflection
  • Muffler Body Height: 5
  • Muffler Body Length: 11
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 12
  • Muffler Color: Black
  • Muffler Finish: Black High-Temperature Paint Finish
  • Muffler Flanged Inlet: No
  • Muffler Flanged Outlet: No
  • Muffler Included: Yes
  • Muffler Inlet Connection: Slip-Fit
  • Muffler Inlet Inside Diameter: 3
  • Muffler Inlet Location: Side
  • Muffler Inlet Outside Diameter: 3.13
  • Muffler Outlet Diameter: 3
  • Muffler Outlet Location: Dual
  • Muffler Outlet Quantity: 2
  • Muffler Overall Length: 49.5
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 2
  • Muffler Series: 60 Series
  • Muffler Type: Reflection
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 2.5
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Tip Logo: Embossed
  • Type: Axle-back
  • Valve Actuator Included: No, Reuse OEM
  • Valve Included: Yes
  • Valve Type: OEM-Style Valves
  • Part Number: 817799
  • Applications:

    • 2018-2023 Ford Mustang 307 CID

    Emissions:

    • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 26164301647

    Discover Niche Categories That Outsell

    Top-Converting Item to Boost Your Average Order

    4.4 ★★★★★
    Based on 1234 reviews
    Sort
    Highest Rating
    Newest First
    Oldest First
    Product Reviews
    T
    Verified Purchase
    Travis
    Chelsea, US
    ★★★★★ 5
    Awesome. Kid loves them
    Size: 4T-5T, Unit Count: 99
    Great. i love how i don't have to rip them. there is Velcro on the sides to pull off. and they fit great
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 22, 2026
    P
    Verified Purchase
    Paige
    Fort Morgan, US
    ★★★★★ 5
    Our Go-To Pull-Ups for Potty Training
    Size: 2T-3T, Unit Count: 124
    We’ve tried a few different brands during potty training, and we always come back to Pull-Ups. They fit my daughter really well, are easy for her to pull up and down on her own, and hold up great overnight without leaking. The sides tear easily for quick changes, which is super helpful when you’re out and about. The designs are also cute and helped make potty training a little more exciting for my toddler. Definitely a staple in our house during this stage!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 12, 2026
    S
    Verified Purchase
    So pretty
    San Leandro, US
    ★★★★★ 5
    Luvs pulls up are the best
    Size: 5T-6T, Unit Count: 48
    I love this brand. It’s very secure, and the adjustable band makes it easy to tighten without taking off my child’s pants. It doesn’t leave an odor, the texture is smooth, and my child is always comfortable. The price matches the quality, and there’s no leakage or spillover. Overall, it’s very durable. Make sure to have it correctly fastened because the Velcro can leave scratches on child skin.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 9, 2025
    L
    Verified Purchase
    L
    Pawtucket, US
    ★★★★★ 4
    Toddler approved
    Size: 4T-5T, Unit Count: 99
    Fits true to size and easy to pull up and down by my toddler. Very absorbent - perhaps a little too absorbent as it's taking my daughter forever to be potty trained and she's content in her soiled training pants... Great quality overall.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 29, 2025
    M
    Verified Purchase
    Marie33kl
    San Leandro, US
    ★★★★★ 5
    They prevent leaks, and fit great!
    We have always used Huggies diapers for our babies and young toddlers because they were the only ones that never leaked or caused a rash. My second daughter was fully potty trained at 2.5 years old and never needed pull-ups. However, our third daughter, who also trained at 2.5 years old, digressed with her nighttime potty training due to instability - we moved twice within the first 6 weeks after she potty trained. So we had to get pull-ups for her to wear at night. Obviously since we loved Huggies diapers, we tried Huggies Pull-Ups, and again, they did not disappoint! They never leak, even on nights when she doesn't get up to go at all, and has lots of pee, and they have never caused a rash either, no matter how full. She's been using them for 1.5 years, at night, and we have never had any issues. They are dependable: decently comfortable to the child, do not cause rashes, fit properly with the ability to adjust at the thigh (if needed), and they prevent leaks! I highly recommend them!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 19, 2025

    recommand products