Outlaw Cat-Back Exhaust System Fits 2020-2026 Silverado/Sierra 2500Hd/3500Hd 6.6L Gas V8, Outlaw Series, 3.50 Inch To Dual 3.00 Inch Cat-Back, Dual Rear Exit, Stainless Steel Exhaust System - Flowmaster - 818112

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.


Max increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels

3.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability

Dual 4.00-inch polished stainless steel tips add a custom look

Includes complete hardware and factory styled hangers in the stock locations for an easy installation

Super 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow

Backed by Flowmaster’s Lifetime Limited Warranty

Can be configured to exit straight out the rear or out the side depending on preference