SKU: 76169457665

2011-2012 Ford Mustang Axle-Back Exhaust Flowmaster Stainless Steel

Sale price$321.73 Regular price$357.48
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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26

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Description

2011-2012 Ford Mustang Axle-Back Exhaust Flowmaster Stainless SteelOverview: This Outlaw axle back exhaust system is specifically designed for 2011 2012 Ford Mustang GT with the 5. 0L engine and replaces the original rear mounted mufflers with factory style connections. With easy fit in mind, these 3. 00 inch mandrel bent exhaust systems include a pair of our race proven Outlaw mufflers for an aggressive exterior and interior sound, and with the maximum amount of power gain possible from an axle back system. The

Overview:

This Outlaw® axle-back exhaust system is specifically designed for 2011-2012 Ford Mustang GT with the 5.0L engine and replaces the original rear mounted mufflers with factory style connections. With easy fit in mind, these 3.00-inch mandrel-bent exhaust systems include a pair of our race-proven Outlaw mufflers for an aggressive exterior and interior sound, and with the maximum amount of power gain possible from an axle-back system. The hangers use the factory locations and the system is finished off with a pair of 4.00-inch polished stainless steel tips embossed with the Flowmaster® name. Designed for an quick and easy installation, these systems include all necessary parts, hardware, detailed instructions and are covered by our Lifetime Limited Warranty. Notes: Also fits 2012 Ford Mustang Boss 302 models.

Features:

  • Flow FX Series performance muffler offers an aggressive to moderate sound level and increased performance
  • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
  • Max dyno gains of 9 hp and 10 lb-ft at the rear wheels
  • 3.00-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
  • Includes all necessary hardware for an at home installation
  • Dual 4.00-inch black ceramic-coated tips add a custom look
  • Uses factory hanger locations for easy installation
  • Lifetime Limited Warranty
  • 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: Outlaw
  • Exhaust Tip Color: Silver
  • Exhaust Tip Connection: Welded
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Edge: Rolled Edge Angle Cut
  • Exhaust Tip Finish: Polished
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 2
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Single 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: 2.75
  • Inlet Type: Clamp-On
  • Main Piping Diameter: 3
  • Mounting Bracket Included: No
  • Muffler (Left) Body Height: 4
  • Muffler (Left) Body Length: 10.5
  • Muffler (Left) Body Width: 4
  • Muffler (Left) Type: Chambered
  • Muffler (Right) Body Height: 4
  • Muffler (Right) Body Length: 10.5
  • Muffler (Right) Body Width: 4
  • Muffler (Right) Type: Chambered
  • Muffler Body Diameter: 4
  • Muffler Body Height: 4
  • Muffler Body Length: 16.75
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Round
  • Muffler Body Width: 4
  • 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: 2.75
  • Muffler Inlet Outside Diameter: 3
  • Muffler Outlet Quantity: 1
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 2
  • Muffler Series: Outlaw
  • Muffler Type: Chambered
  • Pipe Color: Black
  • Pipe Material: 409 Stainless Steel
  • Sound Level: Aggressive
  • Spring Bolt Kit Included: No
  • Tail Pipe Outlet Outside Diameter: 3
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Type: Axle-back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 817516
  • Applications:

    • 2011-2012 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: 76169457665

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    Aaron B.
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    ★★★★★ 5
    As advertised
    Size: 2-pack
    Worked great on a replacement headliner for my 99 Jeep Grand Cherokee
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    Reviewed in the United States on December 22, 2025
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    The Sauce
    Waukegan, US
    ★★★★★ 3
    Ight
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    Reviewed in the United States on September 6, 2025
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    Joshua Roland
    Grantham, US
    ★★★★★ 5
    Best choice! Absolutely necessary for anything above basic stock bass.
    Bonded to services well, completely removed panel reverberation in my tacoma. Also really made the doors so much quieter even when closing. Very happy with the result. Used only one set on my 01 tacoma 4 door. Installed inside doors on exterior skin panel, over interior door panel access holes (sealing the door to provide backpressure to door speakers (left drains open)), roof panel, and back wall of cab. Achieved about 70% coverage and am very happy. 2 8in SKAR SVR8 at 1oh on walmart power acustic 2500 (only rated to ~800rms at 2oh, forum showed testing at 1oh worked about 1kw) in 6th order with blow through into cab. With cab gain, im over 130db between ~30 and ~50hz. This was a necessary addition!
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    Reviewed in the United States on April 13, 2026
    R
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    Rob Chapman
    Fort Morgan, US
    ★★★★★ 5
    Nice and sticky
    Works as it should. No complaints.
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    Reviewed in the United States on May 8, 2026
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    Nick Wilson
    Chelsea, US
    ★★★★★ 5
    Mak sure area is clean before you install
    This works amazing, easy to use, great quality. Sticks down great, I will be ordering more for sure.
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    Reviewed in the United States on April 29, 2026

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