Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System
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Description
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 |
Part details
- Brand
- Flowmaster
- Part number
- 817602
- SKU
- FLO817602
- Category
- Catback
- Weight
- 31.93 kg
Fitment
Use the vehicle checker at the top of this page to see if this part fits your car. Not sure? Send us your VIN on WhatsApp and we will confirm before you order.
Check fitment on WhatsApp →Delivery & returns
- In stock in Doha: delivered within 24 hours.
- Ordered from the manufacturer: around 7 days.
- Returns follow our refund policy. Please confirm fitment before you order.

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