The new Flowmaster American Thunder® Cat-back exhaust system for 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with 6.0L, is perfect for the person looking for a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster®. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD™ muffler and large dual 3.00-inch stainless steel mandrel bent tailpipes that can be configured to exit either dual out the sides, or dual straight out the back. The system is finished off with beautifully polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation. Notes: Fits Crew Cab with 6.5' bed length. 153.7" wheelbase only.
Features:
- Uses the Factory Hanger Locations for Easy Installation
- 50 Series HD Muffler with Delta Flow Technology
- Multiple Tailpipe Exits Provided in Kit
- Large 3.00-inch Dual Tailpipes
- Stainless Steel Construction
- Lifetime Limited Warranty
- Flowmaster Quality
Fits 2011-2019 Chevrolet Silverado and GMC Sierra 2500HD/3500HD Crew cab/standard 6.5-foot bed models with 6.0L gas engine. 153.7" wheelbase.
Installation Notes:
Fits 2011-2019 Chevrolet Silverado and GMC Sierra 2500HD/3500HD Crew cab/standard 6.5-foot bed models with 6.0L gas engine. 153.7" wheelbase.
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 2500 HD |
High Country |
2015 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
High Country |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
High Country |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
High Country |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
High Country |
2019 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2011 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2012 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2013 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2014 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2015 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LTZ |
2019 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2011 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2012 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2013 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2014 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2015 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
LT |
2019 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
WT |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
WT |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
WT |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
WT |
2019 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
|
2011 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
|
2012 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
|
2013 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
|
2014 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 2500 HD |
|
2015 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
High Country |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
High Country |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
High Country |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
High Country |
2019 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LTZ |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LTZ |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LTZ |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LTZ |
2019 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LT |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LT |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LT |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
LT |
2019 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
WT |
2016 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
WT |
2017 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
WT |
2018 |
6.0L / 364 / V8 |
Chevrolet |
Silverado 3500 HD |
WT |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Base |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Base |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Base |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Base |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Base |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2014 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
Denali |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2014 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLE |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2014 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
SLT |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
WT |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
WT |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
WT |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 2500 HD |
WT |
2014 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Base |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Base |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Base |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Base |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2014 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
Denali |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2014 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLE |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2014 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2015 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2016 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2017 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2018 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
SLT |
2019 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
WT |
2011 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
WT |
2012 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
WT |
2013 |
6.0L / 364 / V8 |
GMC |
Sierra 3500 HD |
WT |
2014 |
6.0L / 364 / V8 |