Flowmaster 11-18 GM 1500 143in. Wheelbase 6.2L Force II Cat-Back Exhaust System

This Force II® Cat-back stainless steel exhaust system is designed for 2011-2018 Chevrolet Silverado and GMC Sierra 1500 trucks with the 6.2L engine. Features include large 3.50-inch mandrel-bent tubing flowing into a Flowmaster 50 Series Big Block™ muffler for a muscular exterior sound, while the built-in Helmholtz chamber helps control the interior resonance. The system uses the factory hanger locations for an easy installation and is finished off with a highly polished 4.00-inch 304 stainless steel tip embossed with the Flowmaster® logo. This bolt-on system delivers noticeable performance gains while offering moderate interior and exterior sound levels and is covered by our Lifetime Limited Warranty.

• 50 Series Big Block Performance Muffler
• Large 3.50-inch Mandrel-bent Tubing
• Dyno Tuned For Maximum Performance
• Uses the Factory Hanger Locations
• Stainless Steel Construction
• Lifetime Limited Warranty
• Delta Flow Technology
• Flowmaster Quality

Vehicle Fitment

• 2011-2018 Chevrolet Silverado 1500
• 2011-2018 GMC Sierra 1500

Please verify exact fitment for your trim and engine before ordering.

🚚 Vendor Direct Shipment: This item is not stocked in our warehouse and ships directly from the manufacturer. Please allow additional handling time before dispatch.

Manufacturer Part Number: 817603

Images are for illustrative purposes only. Actual product may vary.

⚠ WARNING (California Proposition 65): This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.