Flowmaster
Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System
Why this price?
$1,171.95 is MSRP, the lowest price Flowmaster lets us list it at. Additionally, Pro members get $128.91 back on this part.
$1,171.95 − $128.91 = $1,043.04
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
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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).
- Dyno Tuned For Maximum Performance
- Uses the Factory Hanger Locations
- Your Choice of Two Tailpipe Exits
- 50 Series HD Performance Muffler
- Clears the Factory Spare Tire
- Stainless Steel Construction
- Lifetime Limited Warranty
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2018 | Chevrolet | Silverado 1500 | High Country |
| 2011-2013 | Chevrolet | Silverado 1500 | LT |
| 2011-2018 | Chevrolet | Silverado 1500 | LTZ |
| 2011-2018 | GMC | Sierra 1500 | Denali |
| 2011-2013 | GMC | Sierra 1500 | SLE |
| 2011-2018 | GMC | Sierra 1500 | SLT |
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