This Flowmaster® Outlaw® Cat-back exhaust system for the 2020-2026 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are looking for an aggressive sound level inside and outside of the truck, with all of the performance benefits that you would expect from Flowmaster®. Maximum increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel Outlaw series muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
3.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
Super 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow
Includes complete hardware and factory styled hangers in the stock locations for an easy installation
Can be configured to exit straight out the rear or out the side depending on preference
Max increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels
Dual 4.00-inch polished stainless steel tips add a custom look
Backed by Flowmaster’s Lifetime Limited Warranty
Vehicle Fitment
2020-2026 Chevrolet Silverado 2500 HD
2020-2026 Chevrolet Silverado 3500 HD
2020-2026 GMC Sierra 2500 HD
2020-2026 GMC Sierra 3500 HD
Please verify exact fitment for your trim and engine before ordering.
Manufacturer Part Number: 818112
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.
