SKU: 24242652135

Flow Fx Direct Fit Dual Mode Muffler With Active Valve Fits 2019-2026 (New Body) Silverado/Sierra 1500 5.3L, 2/4 Wd, All Wheelbases Aggressive To Moderate Sound Flowmaster

Sale price$598.47 Regular price$664.97
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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12

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Description

Flow Fx Direct Fit Dual Mode Muffler With Active Valve Fits 2019-2026 (New Body) Silverado/Sierra 1500 5.3L, 2/4 Wd, All Wheelbases Aggressive To Moderate Sound FlowmasterIntroducing the new Flow FX Active Dual mode muffler featuring our new W. A. V. E. Technology (Wireless Active Valve Exhaust ) for all 2019 2026 GM Silverado Sierra 1500 (new body style) with 5. 3L engine. This direct fit replacement muffler has split personalities with a nice performance tone over the stock exhaust system, thanks to the Flowmaster Flow FX performance muffler. The system also features a high quality wireless controlled actuator valve

Introducing the new Flow FX Active Dual-mode muffler featuring our new W.A.V.E. Technology (Wireless Active Valve Exhaust ) for all 2019-2026 GM Silverado/Sierra 1500 (new body style) with 5.3L engine.

This direct-fit replacement muffler has split personalities with a nice performance tone over the stock exhaust system, thanks to the Flowmaster Flow FX performance muffler. The system also features a high quality wireless controlled actuator valve on the Power Chamber redirecting exhaust through the turn down, giving you that deep open exhaust sound with just a push of a button. System features include mandrel-bent stainless steel construction leading into the Power Chamber, followed by a round Flow FX performance muffler that easily connects to the factory tailpipe. The Power Chamber houses a wireless controlled valve with a large 3.00-inch turndown dump style tailpipe letting everyone know who the Boss is once activated. Other system features include actuator motor, control unit, two wireless key fobs, all necessary wiring, hardware, and detailed instructions. Maximum dyno gains of 9 hp and 11 lb.ft. at the rear wheels. Note: Fits 2019 (New body) 2/4 wheel drive and all wheelbases.

  • Deep Performance Tone from straight-through FlowFX Muffler
  • Max Dyno Gains of 9 hp and 11 lb.ft. of Torque
  • Features Flowmasters W.A.V.E. Technology
  • Very Aggressive Active By-Pass Sound
  • Mandrel-bent Stainless Steel Tubing
  • Wireless Controlled Actuator Motor
  • Detailed Installation Instructions
  • Direct-fit Replacement Muffler
  • Includes a High Quality Valve
  • Stainless Steel Construction
  • Includes Two Key Fobs
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: 24242652135

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4.5 ★★★★★
Based on 27 reviews
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M.R.
New York, US
★★★★★ 5
No more painful cracked heels! These really do work!
Material Type: Black - 3 Pairs, Size: X-Large
These really do work well. This is one of the first winters that I have not experienced painful, cracked heels. They are long lasting, and definitely make my heels smoother and softer after wearing them. For the first few times wearing them I simply went with the moisturizer embedded in them. After a few uses I then covered my heels with Aquaphor Advanced Therapy Healing Ointment. This worked even better, and I would recommend it. I am very glad I bought these. Of note, I have really big feet that are quite wide and the XL are a little snug but not uncomfortably so. I use them overnight, but also have worn them under socks and they work fine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
K
Verified Purchase
kim
Port Orchard, US
★★★★★ 5
Wonderful for dry feet
Material Type: Black - 3 Pairs, Size: X-Large
I have been dealing with dry skin and problems with the heel of my foot, so I thought I would give these a try. I am so glad I did. They moisturize beautifully. A must is you are having trouble with your feet.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
M
Verified Purchase
Michael S.
Grantham, US
★★★★★ 5
Heel Fisures
Material Type: Black - 3 Pairs, Size: X-Large
Fantastic product. Worked well beyond my expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
N
Verified Purchase
Nathan Tucker
Pawtucket, US
★★★★★ 4
X-Large is about a size 12-13 shoe size foot USA.
Material Type: Black - 3 Pairs, Size: X-Large
I love them they work fantastic. I am a big guy with swollen feet. Wear size 12 to 13 USA Shoes. They fit me just fine not tight. My feet felt good after wearing them for two days. Some dry skin pulled off with them and it says to wash by hand. I dont know about the durability but I am hoping to get about 5 uses per pair. Before they become unusable.
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Reviewed in the United States on February 7, 2026
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Verified Purchase
Y K
Waukegan, US
★★★★★ 5
Comfortable
Material Type: Black - 2 Pairs, Size: X-Large, Material Type: Black - 2 Pairs, Size: X-Large
I have very sensitive skin, so I usually need to wear socks at all times. These are especially comfortable because they don’t cover the toes, which helps with temperature control. The material is well-balanced—not too thick or too thin—and has just the right amount of stretch. I also appreciate the large traction area, which adds stability. Another plus is that they are completely fragrance-free.
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Reviewed in the United States on April 21, 2026

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