2019-2020 Chevrolet Silverado 1500 Direct Fit Muffler Kit-Active Valve Flowmaster FlowFX 717911
2019-2020 Chevrolet Silverado 1500 Direct Fit Muffler Kit-Active Valve Flowmaster FlowFX 717911
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Overview:
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.
Features:
Specs:
Applications:
- 2022-2022 Chevrolet Silverado 1500 LTD 325 CID
- 2019-2026 Chevrolet Silverado 1500 325 CID
- 2022-2022 GMC Sierra 1500 Limited 325 CID
- 2019-2026 GMC Sierra 1500 325 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.

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.