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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
Flowmaster 717978 FlowFX Extreme Cat-Back Exhaust SystemFlowmaster introduces our new FlowFX Extreme stainless steel cat back exhaust system for the 2015 to 2020 Ford F 150 with the 2. 7L, 3. 5L, and 5. 0L engines. This system uses a FlowFX series muffler for a deep powerful sound and increased performance. 3 Inch mandrel bent 409 stainless steel tubing is used for maximum exhaust flow and durability. The system has a turndown style dump exit right after the muffler to eliminate the over axle tailpipe.
Flowmaster introduces our new FlowFX Extreme stainless steel cat-back exhaust system for the 2015 to 2020 Ford F-150 with the 2.7L, 3.5L, and 5.0L engines. This system uses a FlowFX series muffler for a deep powerful sound and increased performance. 3 Inch mandrel bent 409 stainless steel tubing is used for maximum exhaust flow and durability. The system has a turndown style dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps to improve ground clearance and departure angle when you are driving in more extreme off-road situations. Comes With All of the necessary hardware and factory mounting locations are used for an easy installation.
Features & Benefits
- 409 Stainless Steel Construction Delivers Extra Durability And Improved Long-Term Corrosion Resistance
- FlowFX Series Performance Muffler Offers A Deep Powerful Sound And Increased Performance
- Max Dyno Gains Of 18 Horsepower And 9 Pounds Feet Torque Over Stock At The Rear Wheels
- 3 Inch 16 Gauge Mandrel Bent Stainless Steel Tubing Helps Maintain Maximum Exhaust Flow For Better Power
- Dump Style Exit Allows For Better Ground Clearance When In Extreme Off-Road Conditions
- Uses Factory Hanger Locations For Easy Installation
- Comes With All Necessary Hardware For An At Home Installation
- Limited Lifetime Warranty
Attributes
- Sound Level: Aggressive/ Moderate
- Type: Cat-Back
- Exhaust Type: Single
- Outlet Type: Single
- Exit Position: Rear Exit
- Material: Stainless Steel
- Diameter (IN): 3 Inch
- Includes Muffler: Yes
- Muffler Brand: FlowFX
- Includes Exhaust Tip: Yes
- Exhaust Tip Style: 3 Inch Turndown Cut
- Muffler Quantity: 1
- Includes Exhaust Pipe Muffler Delete: No
- Muffler Configuration: Single Inlet, Single Outlet
- Includes Hardware: Yes
- Required Welding: No
- Estimated Install Time (Hours): 2
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 3
Not well made
I have used these for 2 weeks now and one of them has a hole in the sole...
I won't ever buy them again
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Reviewed in the United States on July 15, 2025
★★★★★ 5
So excited for results, feels like it’s working!
Size: Medium, Unit Count: 4
First time trying them right now as delivered today. Originally thought was supposed to wear all night but glad to find out 30 minutes just because my dog sleeps on my feet over my sheets! These silicone socks feel great and I trim my toe nails short enough they seem very durable and unlikely to rip like the pic review shows. I am confident my feet and heels will much smoother after first time wearing! I do have acrylic nails so I will be careful
Putting the silicone socks on and off. Just as easy as the video the spread the lotion inside the socks and rub it around, mess free!!
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Actually, better than I expected!
Size: Medium, Unit Count: 4
These are better than what I was expecting based on the reviews. I do put them on carefully because someone said you can’t tear them so I’m careful putting them on, but they almost don’t feel like you’re wearing anything as long as you don’t put them too tight on your toes. I can put lotion on my feet and I know it has to soak in because there’s no place else for it to go like socks or my bed.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Moisturing
Size: Medium, Unit Count: 4
The silicone socks are nice, they help my dry heels. I will warn you don't walk with them I got up in the middle of the night and tore one pair.
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Reviewed in the United States on April 3, 2026
★★★★★ 3
So so...
Size: Medium, Unit Count: 2
They do what they advertised.
You can NOT walk in them you will stretch them and pop a hole in them.
You cannot sleep in them unless your going to wear larger cotton socks with them to keep them in place. They are easy to wash and dry which is nice. I will need to buy another pair. Great if your gonna watch a movie or binge TV in.
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Reviewed in the United States on April 7, 2026