SKU: 63899551213

2015-2017 Ford Mustang Axle-Back Exhaust Flowmaster Stainless Steel

$427.48 $474.98
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 22 - Sep 27

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Description

2015-2017 Ford Mustang Axle-Back Exhaust Flowmaster Stainless SteelOverview: The Flowmaster American Thunder Axle back exhaust system for the 2015 2017 Ford Mustang GT is perfect for the person looking for an aggressive sound level both inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt on emissions legal system is for cars with the 5. 0L engine and features 3. 00 inch mandrel bent tubing flowing into a pair of Super 44 Series performance mufflers with

Overview:

The Flowmaster® American Thunder® Axle-back exhaust system for the 2015-2017 Ford Mustang GT is perfect for the person looking for an aggressive sound level both inside and outside of the car, with all of the performance benefits that you would expect from Flowmaster. This bolt-on emissions-legal system is for cars with the 5.0L engine and features 3.00-inch mandrel-bent tubing flowing into a pair of Super 44™ Series performance mufflers with 3.00-inch tailpipes for maximum performance and a deep powerful sound. The system is constructed from 409 stainless steel and features large 4.00-inch polished stainless steel tips for a refined look. The system is covered by our Flowmaster Lifetime Limited Warranty and is designed for an easy fit and includes all necessary parts and hardware for installation. Note: This system fits coupes and convertibles.

Features:

  • Large 4.5-inch Black Ceramic Coated Stainless Steel Tips
  • Flow FX "Straight-through" Performance Mufflers
  • Deep Powerful Tone Exterior Sound
  • Includes All Necessary Hardware
  • Full Stainless Steel Construction
  • Clears the Factory Spare Tire
  • Lifetime Limited Warranty
  • Easy at Home Installation

    • 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: 2
  • 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 Diameter: 2.5
  • Inlet Type: Clamp-On
  • Main Piping Diameter: 3
  • Mount Type: Flanged
  • Mounting Bracket Included: No
  • Muffler (Left) Body Height: 4
  • Muffler (Left) Body Length: 13.25
  • Muffler (Left) Body Width: 9.5
  • Muffler (Left) Type: Chambered
  • Muffler (Right) Body Height: 4
  • Muffler (Right) Body Length: 13.25
  • Muffler (Right) Body Width: 9.5
  • Muffler (Right) Type: Chambered
  • Muffler Body Height: 4
  • Muffler Body Length: 13.25
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 9.5
  • 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 Outside Diameter: 3.13
  • Muffler Outlet Quantity: 1
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 2
  • Muffler Series: Super 44
  • Muffler Type: Chambered
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 3
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Tip Logo: Embossed
  • Type: Axle-back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 817749

    • Applications:

    • 2015-2017 Ford Mustang 302 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: 63899551213

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    4.4 ★★★★★
    Based on 17 reviews
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    A
    Verified Purchase
    Amazon Customer
    Charlottesville, US
    ★★★★★ 5
    No more scrolling. Best price, abundant, does its job.
    Model: 36 Sqft, Model: 36 Sqft
    I have it under the closed cell foam. It’s great. Just as great as Killmat and all the other butyl rubber products. Let me ask you to do something: look at the people who rated it 1 and 2 stars. No reviews. No pictures. Why? They don’t want to see the most budget friendly product getting sold. That’s some weak business. Rest assured you’ll be happy with this. Why did I buy both types? Butyl rubber helps the car not be a tin can. It keeps the outside road vibrations out. Closed cell phone keeps your music in. They work best together., Kumbaya, we have unity! We can get along, even in this age in time. The closed cell foam is cheap. You’ll get it to replace the nasty cloth under your carpet. Do the knock test. It won’t help. You need this too. And truth be told, I prefer that it has no name on it. I’m not paying money so you can brand yourself on my car. Ps: these products go on and don’t come off. Don’t mess up. It’s the same for the competitors and the closed cell foam. One shot. Do it right the first time. I’m writing this review after I used up my first box and am getting more. Happy returning customer.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 17, 2026
    G
    Verified Purchase
    G.C.B.
    Alexandria, US
    ★★★★★ 5
    Great stuff, well made.
    Model: 36 Sqft
    I was very pleased with this product. Very easy to use, flexible enough to conform to the variations of the surface (floor of the car and some side panels), and it stuck well. I topped it with a similar foam product to provide additional sound deadening. The car has not been run yet but the panels are much "quieter" when tapped on vs before with undercoating, felt and carpet. Seems well made and I expect no issues in the future.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 17, 2026
    N
    Verified Purchase
    Nick
    Waukegan, US
    ★★★★★ 5
    Great quality!
    Model: 36 Sqft
    Works amazing!! Same quality as the name brand stuff but significantly cheaper.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 19, 2026
    N
    Verified Purchase
    Nick
    Battle Creek, US
    ★★★★★ 5
    Good inexpensive sound deadening
    Model: 36 Sqft
    This stuff works great, it's easy to apply, sticky, easy to cut. 36 ft.² was enough to do the inside and outside of my doors the roof, the wheel wells and rear fenders. Plus, it's a lot cheaper than others.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 8, 2026
    S
    Verified Purchase
    Saif addeen hakouz
    Whiting, US
    ★★★★★ 5
    Very good quality
    Model: 36 Sqft
    Very good quality, noticeable difference after installation. The sound deadening effect is clear, with a great reduction in road noise and vibrations. Installation was quick and easy.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 2, 2026

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