SKU: 12816156566

2021-2026 Ford F Performance Muffler Flowmaster Stainless Steel

Sale price$191.67 Regular price$212.97
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

2021-2026 Ford F Performance Muffler Flowmaster Stainless SteelOverview: This Flowmaster Flow FX Direct Fit Muffler system for the 2021 2026 Ford F 150 trucks with the 2. 7, 3. 5 or 5. 0 liter engines is manufactured using durable 409 stainless steel throughout and features 3. 00 inch mandrel bent pipes for optimum exhaust gas flow. A Flowmaster Flow FX Series muffler is used for an aggressive to moderate sound level and maximum performance. Performance increases on the dyno revealed an increase of 18 hp and 14

Overview:

This Flowmaster® Flow FX Direct-Fit Muffler system for the 2021-2026 Ford F-150 trucks with the 2.7, 3.5 or 5.0-liter engines is manufactured using durable 409 stainless steel throughout and features 3.00-inch mandrel bent pipes for optimum exhaust gas flow. A Flowmaster Flow FX Series muffler is used for an aggressive to moderate sound level and maximum performance. Performance increases on the dyno revealed an increase of 18 hp and 14 ft/lbs. at the rear wheels. This system connects directly to the factory dual tail pipes and uses all the existing factory hangers. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's One (1) Year Limited Warranty.

Features:

  • 3.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • A tuned Flow FX style muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow with no drone
  • Max increases of up to 13 hp and 11 lb-ft over the stock exhaust at the wheels
  • Tuned performance muffler eliminates interior drone
  • Maintains factory warranty
  • Lifetime Limited Warranty
  • Specs:

  • Body Height: 4
  • Body Length: 14
  • Body Material: 409 Stainless Steel
  • Body Width: 9
  • Brand: Flowmaster
  • Clamps Included: Yes
  • Emission Code: 5
  • Exhaust Series: Flow FX
  • Exhaust Tip Quantity: Sold Separately
  • Exit Position: OEM
  • Exit Position: OEM
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Heat Shield Attached: No
  • Inlet Inside Diameter: 2.75
  • Inlet Location: Center
  • Inlet Outside Diameter: 2.88
  • Inlet Quantity: 1
  • Inlet Type: Slip-Fit
  • Main Piping Diameter: 3
  • Material: 409 Stainless Steel
  • Mount Type: Uses factory hangers
  • Muffler Body Length: 14
  • Muffler Color: Silver
  • Muffler Finish: Natural
  • Muffler Inlet Diameter: 3
  • Muffler Inlet Location: Center
  • Muffler Material: 409 Stainless Steel
  • Muffler Outlet Diameter: 3
  • Muffler Outlet Location: Dual
  • Muffler Overall Length: 20
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: Flow FX
  • Muffler Shape: Oval
  • Muffler Type: Absorption
  • Outlet Inside Diameter: 3
  • Outlet Location: Dual
  • Outlet Outside Diameter: 3.13
  • Outlet Quantity: 2
  • Outlet Type: Slip-Fit
  • Overall Length: 52.5
  • Pipe Material: 409 Stainless Steel
  • Single Dual: Dual
  • Sound Level: Aggressive / Moderate
  • System Type: Direct-fit Muffler
  • Tip Style: Not Included
  • Tubing Diameter: 3
  • Type: Direct-fit Muffler
  • Valve Included: No
  • Valve Type: Not Applicable
  • Part Number: 718172
  • Applications:

    • 2021-2026 Ford F-150 307 CID
    • 2021-2026 Ford F-150 164 CID
    • 2021-2026 Ford F-150 213 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: 12816156566

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    4.5 ★★★★★
    Based on 27 reviews
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    Verified Purchase
    J. Randle
    San Leandro, US
    ★★★★★ 5
    Love them
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 31, 2026
    V
    Verified Purchase
    Vonda Kioultzopoulos
    Fort Morgan, US
    ★★★★★ 3
    Effective but may be uncomfortable
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on September 20, 2025
    T
    Verified Purchase
    Tessy
    Pawtucket, US
    ★★★★★ 1
    Burned my already sensitive feet, too big
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    Feels icky, and the heat gets trapped and literally felt like my feet were being burned by these. The bottoms of these feel prickly and they are way too big. You have to sit still and cannot walk in them.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 22, 2026
    M
    Verified Purchase
    Ms. Mac
    Pawtucket, US
    ★★★★★ 5
    Just as good as paraffin wax
    Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
    I might prefer these socks over paraffin wax. They are comfy and very moisturizing. I use these socks once a week to keep the heels and soles of my feet moisturized between pedicures. I rinse with warm, soapy water then hang to dry. They are hard to walk in, but there's a saying printed in the socks that's says something to the effect of "take a break, stay off your feet" lol I love that as a reminder to put my feet up and relax
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 9, 2026
    S
    Verified Purchase
    SKI
    Port Orchard, US
    ★★★★★ 5
    Love these!
    Color: Pink & Beige, Size: Small(fits up to size 7)
    Love these! As I write this review, I’m sitting in my recliner with these on. I have had other silicone socks in the past and would like to share a few of the things that I have learned. These fit great! The others were 2-3 sizes too big because you could not order a size. I wear a size 7 women’s shoe. I got the smaller size. I walked around my apartment in my old ones and they got kinda yucky. Now, I sit in my recliner, put them on and chill for a few hours. I now take them off and put in a ziplock bag so they stay nice and clean (no cat hair!). I use them once a week usually on Saturday or Sunday as I’m a working girl. Also, I use Auqaphor before I put them on and put cotton socks on after I’m finished. Your feet will be SO soft. This is not a one and done…I do this every week especially during sandal season! I know this was lengthy and I hope you got some tips.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 25, 2026

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