The American Thunder® Cat-back exhaust system for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine, is perfect for the person looking for an aggressive exterior sound level while maintaining a moderate interior tone. This bolt-on stainless steel system features a 3.50-inch mandrel-bent inlet pipe flowing into the 50 Series™ HD performance muffler with large 4.00-inch internals and a built-in tuned resonance chamber to minimize interior drone. The system has dual 2.50-inch mandrel-bent tailpipes which use the factory hanger locations and are finished off with large 3.50-inch polished stainless steel tips. This exhaust system gives you choices for tailpipe exit location either out each side behind the rear tires if you do a lot of towing, or straight-out under the rear bumper for a muscular look. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for easy installation you can do at home. Note: Fits 2/4 WD model with Crew Cab/Short Bed (143.5" WB), Crew Cab/Standard Bed (153" WB) and Double Cab/Standard Bed (143.5" WB).
Features:
- Dyno Tuned For Maximum Performance
- Uses the Factory Hanger Locations
- 50 Series HD Performance Muffler
- Your Choice of Two Tailpipe Exits
- Clears the Factory Spare Tire
- Stainless Steel Construction
- Lifetime Limited Warranty
Fits 2011-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 with 6.2L engine, 2/4 WD model with Crew Cab/Short Bed (143.5" WB), Crew Cab/Standard Bed (153" WB) and Double Cab/Standard Bed (143.5" WB).
Installation Notes:
Fits 2011-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 with 6.2L engine, 2/4 WD model with Crew Cab/Short Bed (143.5" WB), Crew Cab/Standard Bed (153" WB) and Double Cab/Standard Bed (143.5" WB).
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 |
High Country |
2014 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2015 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2016 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2017 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
High Country |
2018 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2011 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2012 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2013 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2014 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2015 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2016 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2017 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LTZ |
2018 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2011 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2012 |
6.2L / 376 / V8 |
Chevrolet |
Silverado 1500 |
LT |
2013 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2011 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2012 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2013 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2014 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2015 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2016 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2017 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
Denali |
2018 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLE |
2011 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLE |
2012 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLE |
2013 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2011 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2012 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2013 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2014 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2015 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2016 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2017 |
6.2L / 376 / V8 |
GMC |
Sierra 1500 |
SLT |
2018 |
6.2L / 376 / V8 |