{"product_id":"flowmaster-outlaw-cat-back-exhaust-system-for-2020-2026-chevy-silverado-gmc-sierra-2500hd-3500hd-with-6-6l-gas-engine","title":"Flowmaster Outlaw Cat-Back Exhaust System for 2020-2026 Chevy Silverado \u0026 GMC Sierra 2500HD\/3500HD with 6.6L Gas Engine","description":"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.\nFits 2020-2026 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Gas V8, Outlaw Series, 3.50\" to Dual 3.00\" Cat-Back, Dual Rear Exit, Stainless Steel Exhaust System\nFits Crew Cab with 6.5-foot bed length, 159-inch wheelbase only.\r\nWill not fit models with 5th wheel tow hitch installed.\n\u003cul\u003e\n  \u003cli\u003e3.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability\u003c\/li\u003e\n  \u003cli\u003eSuper 10 Series performance muffler delivers a deep, aggressive performance tone and improves exhaust flow\u003c\/li\u003e\n  \u003cli\u003eIncludes complete hardware and factory styled hangers in the stock locations for an easy installation\u003c\/li\u003e\n  \u003cli\u003eCan be configured to exit straight out the rear or out the side depending on preference\u003c\/li\u003e\n  \u003cli\u003eMax increases of up to 9 hp and 9 lb.ft. over the stock exhaust at the rear wheels\u003c\/li\u003e\n  \u003cli\u003eDual 4.00-inch polished stainless steel tips add a custom look\u003c\/li\u003e\n  \u003cli\u003eBacked by Flowmaster’s Lifetime Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Flowmaster Outlaw Cat-Back Exhaust System (Part Number: flo818112) is designed specifically for the 2020-2026 Chevy Silverado and GMC Sierra 2500HD\/3500HD trucks equipped with the 6.6L gas V8 engine. This system enhances both sound and performance, delivering an aggressive exhaust note that resonates inside and outside the vehicle while providing significant power gains. Constructed from durable 16-gauge mandrel-bent 409 stainless steel tubing with a 3.50-inch diameter and dual 3.00-inch pipes, it ensures optimal exhaust flow and longevity. The system features the Super 10 Series performance muffler, which produces a deep, aggressive tone and improves exhaust efficiency, contributing to a maximum increase of up to 9 horsepower and 9 lb-ft of torque at the rear wheels.\u003c\/p\u003e The kit includes all necessary hardware and factory-style hangers, making installation straightforward for DIY enthusiasts or professional installers. With versatile exit configurations, it can be set up to exit either straight out the rear or out the sides behind the rear wheels, the latter being ideal for towing applications. Aesthetically, the system is finished with polished 4.00-inch stainless steel tips, adding a sleek, customized look to your truck. This exhaust system is emissions-legal and covered under Flowmaster’s Lifetime Limited Warranty, ensuring durability and peace of mind for years to come. Designed exclusively for Crew Cab models with a 6.5-foot bed and 159-inch wheelbase, it offers a perfect fit and enhances your vehicle’s performance and sound profile without compromising on quality or compliance. Whether you are looking to improve exhaust flow, add a commanding sound, or upgrade the appearance of your Silverado or Sierra, this Flowmaster Outlaw Cat-Back system provides an excellent solution. Its robust construction, performance benefits, and customizable exit options make it a popular choice among truck enthusiasts seeking both functionality and style.\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e3.50-inch and 3.00-inch mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuper 10 Series performance muffler delivers a deep, aggressive performance tone and enhances exhaust flow\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes complete hardware and factory-styled hangers for an easy, bolt-on installation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConfigurable exit options: straight out the rear or out the sides behind the rear wheels\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaximum power increase of up to 9 hp and 9 lb-ft of torque at the rear wheels\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDual polished 4.00-inch stainless steel tips provide a custom, refined appearance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCovered by Flowmaster’s Lifetime Limited Warranty for long-lasting performance\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2020 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2020 GMC Sierra 2500 HD Base\u003cbr\u003e\n2020 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2020 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2020 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2020 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2020 GMC Sierra 3500 HD Base\u003cbr\u003e\n2020 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2020 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2020 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2021 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2021 GMC Sierra 2500 HD Base\u003cbr\u003e\n2021 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2021 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2021 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2021 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2021 GMC Sierra 3500 HD Base\u003cbr\u003e\n2021 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2021 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2021 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2022 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2022 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2022 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2022 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2022 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2022 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2022 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2022 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2023 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2023 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2023 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2023 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2023 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2023 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2023 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2023 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2023 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2023 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2023 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2023 GMC Sierra 2500 HD Pro\u003cbr\u003e\n2023 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2023 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2023 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2023 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2023 GMC Sierra 3500 HD Pro\u003cbr\u003e\n2023 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2023 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2024 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2024 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2024 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2024 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2024 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2024 Chevrolet Silverado 2500 HD ZR2\u003cbr\u003e\n2024 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2024 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2024 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2024 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2024 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2024 GMC Sierra 2500 HD AT4X\u003cbr\u003e\n2024 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2024 GMC Sierra 2500 HD Pro\u003cbr\u003e\n2024 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2024 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2024 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2024 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2024 GMC Sierra 3500 HD Pro\u003cbr\u003e\n2024 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2024 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2025 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2025 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2025 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2025 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2025 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2025 Chevrolet Silverado 2500 HD ZR2\u003cbr\u003e\n2025 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2025 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2025 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2025 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2025 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2025 GMC Sierra 2500 HD AT4X\u003cbr\u003e\n2025 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2025 GMC Sierra 2500 HD Pro\u003cbr\u003e\n2025 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2025 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2025 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2025 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2025 GMC Sierra 3500 HD Pro\u003cbr\u003e\n2025 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2025 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2026 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2026 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2026 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2026 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2026 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2026 Chevrolet Silverado 2500 HD ZR2\u003cbr\u003e\n2026 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2026 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2026 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2026 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2026 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2026 GMC Sierra 2500 HD AT4X\u003cbr\u003e\n2026 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2026 GMC Sierra 2500 HD Pro\u003cbr\u003e\n2026 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2026 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2026 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2026 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2026 GMC Sierra 3500 HD Pro\u003cbr\u003e\n2026 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2026 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