Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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Flowmaster FlowFX Direct-Fit Muffler with Active Valve (19-24 5.3L Sierra 1500)
Item S512889
Sierra 1500 Sales Techs:
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M-F 8:30A-11P, Sat-Sun 8:30A-9P
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Our Price
$786.95 (kit)
FREE Shipping Market Price $904.99 You Save 13% ($118.04) Up to 10% off for Military & First Responders! See DetailsWill this fit your Vehicle?
Ship to: Columbus - 43215
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Install Shops are available near Columbus - 43215
Add Installation From:
Wards Auto Repair LLC
551 Corbett Rd, Groveport, OH
11.21 miles away
25 Reviews
*Specific shop subject to availability
Total cost of service $249.00
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Produces a Deep, Aggressive Exhaust Tone
- WAVE Technology
- Facilitates Efficient Exhaust Flow to Increase Horsepower and Torque
- Direct-Fit, Power Chamber Muffler Design
- Made From Premium 3-Inch, Mandrel Bent 409 Stainless Steel Tubing
- Natural Brushed Finish
- Features a High-Quality, Wireless Controlled Actuator Valve
- Dual Rear Exit
- Two Key Fobs
- Bolt-On Installation
- Backed by a Limited Lifetime Warranty
- Made in the USA
- Designed for All 2019-2024 5.3L Sierra 1500s
| Brand | Flowmaster |
| Muffler Inlet Size | 3.00 Inch |
Description
All-Terrain Confidence. Elevate your Sierra 1500’s powerful presence by letting out a fearless exhaust sound through the Flowmaster FlowFX Direct-Fit Muffler with Active Valve. This muffler is designed to produce a deep and aggressive exhaust tone, and features a constant power by means of a push button that regulates the wireless controlled actuator valve.
Performance Boost. The FlowFX Direct-Fit Muffler offers superior capabilities in scavenging and refocusing of the exhaust gases. Its Power Chamber and W.A.V.E technology™ (Wireless Active Valve Exhaust™) innovatively regulate precise phase shifts to maximize power gains. Furthermore, the resulting increase in horsepower and torque provide the truck with a significantly improved overall vehicle dynamics, both on and off the road.
Reliability and Toughness. Flowmaster ensures long-lasting functionality of this FlowFX Direct-Fit Muffler by using high-grade 409 stainless tubing. This fully welded, 3-inch tubing is engineered to resist corrosive attacks and handle extreme temperatures. Moreover, the full, seamless welds and the premium band clamps eliminate leak paths and offer extra durability.
Seamless Compatibility. This exhaust system installs directly into the factory mounting points of your vehicle. It includes all the necessary hardware for a hassle-free installation process that requires the use of simple hand tools with moderate mechanical skills.
Application. The Flowmaster FlowFX Direct-Fit Muffler with Active Valve is specifically designed to fit all 2019-2024 5.3L Sierra 1500s.
Fitment:
- 2019 GMC Sierra 1500
- 2020 GMC Sierra 1500
- 2021 GMC Sierra 1500
- 2022 GMC Sierra 1500
- 2023 GMC Sierra 1500
- 2024 GMC Sierra 1500
Flowmaster 717911
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler With Valve Assembly
- (1) Actuator Mount Assembly
- (1) Valve Assembly
- (1) Actuator Assembly
- (1) Key Fob
- (1) Three-Inch Band Clamp
- (2) 2.25-Inch Band Clamp
- (1) Wire Assembly
4.6
Customer Reviews (73)
Questions & Answers
10 More Questions
Will It Fit My Sierra 1500
- 3.0L I6 Duramax - 22
- 5.3L V8 - 19, 20, 21, 22, 23, 24
- 6.2L V8 - 22
