Introducing the new FlowFX® Active Dual-mode muffler featuring our new W.A.V.E. Technology™ (Wireless Active Valve Exhaust™) for all 2019-2023 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® FlowFX 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 FlowFX 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:
- 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
Does Not Fit 2019 Classic Body.
Installation Notes:
Does Not Fit 2019 Classic Body.
About Flowmaster
Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make |
Model |
Submodel |
Years |
Engine |
Chevrolet |
Silverado 1500 |
Base |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom Trail Boss |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom Trail Boss |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom Trail Boss |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom Trail Boss |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom Trail Boss |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
Custom |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT Trail Boss |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT Trail Boss |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT Trail Boss |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT Trail Boss |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT Trail Boss |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
PPV |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
RST |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
RST |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
RST |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
RST |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
RST |
2023 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
SSV |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
SSV |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
SSV |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
WT |
2019 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
WT |
2020 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
WT |
2021 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
WT |
2022 |
5.3L / 325 / V8 |
Chevrolet |
Silverado 1500 |
WT |
2023 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
AT4 |
2019 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
AT4 |
2020 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
AT4 |
2021 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Base |
2019 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Base |
2020 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Base |
2021 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Denali |
2019 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Denali |
2020 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Denali |
2021 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Denali |
2022 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Denali |
2023 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Elevation |
2019 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Elevation |
2020 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Elevation |
2021 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Elevation |
2022 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Elevation |
2023 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Pro |
2022 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
Pro |
2023 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLE |
2019 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLE |
2020 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLE |
2021 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLE |
2022 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLE |
2023 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLT |
2019 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLT |
2020 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLT |
2021 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLT |
2022 |
5.3L / 325 / V8 |
GMC |
Sierra 1500 |
SLT |
2023 |
5.3L / 325 / V8 |