This Flowmaster® FlowFX® cat-back exhaust system for the 2019-2023 GM Silverado/Sierra 1500 trucks with the 6.2L engine and factory dual exhaust, is manufactured using durable 409 stainless steel throughout and features 3.5-inch to dual 2.50-inch mandrel bent pipes for better exhaust gas flow, and a FlowFX "straight-through" muffler is used for a moderate sound level and maximum performance. Maximum increases on the dyno revealed +26 hp and +39 lb.ft at the rear wheels. This system fits all wheelbases and connects to the factory exhaust tips that exit in the rear bumper for a stealthy look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.
Features:
- Max Increases of up to 26 hp and 39 lb.ft. over the stock exhaust at the rear wheels
- 3.5-inch and 2.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
- Connects to the factory dual exhaust tips for a stealthy look
- Includes complete hardware and factory styled hangers in the stock locations for an easy installation
- FlowFX “straight through” performance muffler delivers a deep, moderate performance tone and improves exhaust flow
- Backed by Flowmaster’s Lifetime Limited Warranty
Fits 2/4 wheel drive and all wheelbases.
Fits trucks with factory dual exhaust option only.
Installation Notes:
Fits 2/4 wheel drive and all wheelbases.
Fits trucks with factory dual exhaust option only.
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 LTD |
Custom Trail Boss |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 LTD |
High Country |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 LTD |
LT Trail Boss |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 LTD |
LTZ |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 LTD |
RST |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
Custom Trail Boss |
2020 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
Custom Trail Boss |
2021 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
High Country |
2019 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
High Country |
2020 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
High Country |
2021 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
High Country |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
High Country |
2023 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LT Trail Boss |
2020 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LT Trail Boss |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LT Trail Boss |
2023 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LTZ |
2019 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LTZ |
2020 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LTZ |
2021 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LTZ |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
LTZ |
2023 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
RST |
2020 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
RST |
2021 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
RST |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
RST |
2023 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
ZR2 |
2022 |
6.2L / 376 / V8 |
| Chevrolet |
Silverado 1500 |
ZR2 |
2023 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 Limited |
AT4 |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 Limited |
Denali |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 Limited |
SLT |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
AT4X |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
AT4X |
2023 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
AT4 |
2019 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
AT4 |
2020 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
AT4 |
2021 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
AT4 |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
AT4 |
2023 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
Denali Ultimate |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
Denali Ultimate |
2023 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
Denali |
2019 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
Denali |
2020 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
Denali |
2021 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
Denali |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
Denali |
2023 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
SLT |
2019 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
SLT |
2020 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
SLT |
2021 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
SLT |
2022 |
6.2L / 376 / V8 |
| GMC |
Sierra 1500 |
SLT |
2023 |
6.2L / 376 / V8 |
