Flowmaster 11-18 GM 1500 CC-EC 6.2L American Thunder Cat-Back Exhaust System

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). Fits 2011-2018 Chevrolet Silverado 1500, GMC Sierra 1500 with 6.2L engine. - Aggressive to moderate sound 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).

• 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

Upgrade your 2011-2018 Chevrolet Silverado 1500 or GMC Sierra 1500 with the Flowmaster American Thunder Cat-Back Exhaust System, Part Number 817602. Designed for 6.2L engines in 2WD and 4WD Crew Cab or Double Cab configurations, this bolt-on exhaust system delivers an aggressive exterior sound with a moderate interior tone. It is engineered for select Crew Cab short-bed, Crew Cab standard-bed, and Double Cab standard-bed applications, providing a direct-fit solution for trucks using the factory exhaust hanger locations.
Constructed from durable stainless steel, the system uses a mandrel-bent inlet pipe feeding a Flowmaster 50 Series HD performance muffler. Large internal passages support efficient exhaust flow, while the integrated tuned resonance chamber helps reduce unwanted interior drone during cruising. Dyno-tuned performance supports improved exhaust flow and a strong, muscular exhaust note without making the cabin excessively loud.
Dual mandrel-bent tailpipes provide flexible installation options. Configure the outlets to exit behind each rear tire for a towing-friendly setup or route them straight out beneath the rear bumper for a more traditional performance-truck appearance. Large polished stainless steel tips complete the installation and add a clean, finished look. The system is designed to clear the factory spare tire and includes the required components and hardware for a home installation.
Flowmaster backs this American Thunder Cat-Back Exhaust System with a Lifetime Limited Warranty. Verify engine, cab, bed, drivetrain, and wheelbase compatibility before ordering. This product may require emissions-related acknowledgement depending on the vehicle and installation location.

Features:

• Dyno-tuned design supports efficient exhaust flow and maximum performance

• Stainless steel construction provides durability and corrosion resistance

• Flowmaster 50 Series HD performance muffler delivers an aggressive exterior sound with a moderate interior tone

• Tuned resonance chamber helps minimize unwanted interior drone

• Dual mandrel-bent tailpipes use the factory hanger locations

• Selectable tailpipe outlets can exit behind the rear tires or beneath the rear bumper

• Polished stainless steel exhaust tips provide a finished appearance

• Designed to clear the factory spare tire

• Includes necessary installation components and hardware

• Backed by a Lifetime Limited Warranty

Fitment:
Chevrolet Silverado 1500 High Country 2014
Chevrolet Silverado 1500 High Country 2015
Chevrolet Silverado 1500 High Country 2016
Chevrolet Silverado 1500 High Country 2017
Chevrolet Silverado 1500 High Country 2018
Chevrolet Silverado 1500 LT 2011
Chevrolet Silverado 1500 LT 2012
Chevrolet Silverado 1500 LT 2013
Chevrolet Silverado 1500 LTZ 2011
Chevrolet Silverado 1500 LTZ 2012
Chevrolet Silverado 1500 LTZ 2013
Chevrolet Silverado 1500 LTZ 2014
Chevrolet Silverado 1500 LTZ 2015
Chevrolet Silverado 1500 LTZ 2016
Chevrolet Silverado 1500 LTZ 2017
Chevrolet Silverado 1500 LTZ 2018
GMC Sierra 1500 Denali 2011
GMC Sierra 1500 Denali 2012
GMC Sierra 1500 Denali 2013
GMC Sierra 1500 Denali 2014
GMC Sierra 1500 Denali 2015
GMC Sierra 1500 Denali 2016
GMC Sierra 1500 Denali 2017
GMC Sierra 1500 Denali 2018
GMC Sierra 1500 SLE 2011
GMC Sierra 1500 SLE 2012
GMC Sierra 1500 SLE 2013
GMC Sierra 1500 SLT 2011
GMC Sierra 1500 SLT 2012
GMC Sierra 1500 SLT 2013
GMC Sierra 1500 SLT 2014
GMC Sierra 1500 SLT 2015
GMC Sierra 1500 SLT 2016
GMC Sierra 1500 SLT 2017
GMC Sierra 1500 SLT 2018