{"product_id":"flowmaster-flo818113-american-thunder-cat-back-exhaust-system","title":"Flowmaster flo818113 American Thunder Cat-Back Exhaust System","description":"This Flowmaster® American Thunder® cat-back exhaust system for the 2019-2026 Chevrolet\/GMC Silverado\/Sierra with the 2.7-liter engine is manufactured using durable 409 stainless steel throughout and features dual 2.50-inch mandrel bent pipes for better exhaust gas flow, and an American Thunder muffler is used for a moderate sound level and maximum performance. Gain up to 4 hp and 11 lbs-ft of torque at the rear wheels over stock.  This system exits dual out the rear or dual out the side, with dual 3.50-inch polished tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home.  Backed by Flowmaster's Lifetime Limited Warranty.\nFits 2019-2026 Chevrolet\/GMC Silverado\/Sierra 2.7-Liter, Cat-Back, Dual Out Rear\/Side Exit, Stainless Steel Exhaust System\nFits 2019-2026 Chevrolet\/GMC Silverado\/Sierra trucks with 2.7-liter engines, 2 \u0026amp; 4-wheel drive.  Does not fit models with the Multimatic suspension option.\n\u003cul\u003e\n  \u003cli\u003eDual 2.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability\u003c\/li\u003e\n  \u003cli\u003e50 Series Big Block performance muffler delivers a deep, moderate 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\u003eDual 3.50-inch polished tips exit dual out the rear or side for a custom look\u003c\/li\u003e\n  \u003cli\u003eGain up to 4 hp and 11 lbs-ft of torque at the rear wheels\u003c\/li\u003e\n  \u003cli\u003eFlowmaster’s Lifetime Limited Warranty\u003c\/li\u003e\n  \u003cli\u003eFits 147-inch and 157-inch wheelbases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Flowmaster American Thunder cat-back exhaust system is designed for 2019–2026 Chevrolet Silverado and GMC Sierra trucks equipped with 2.7-liter engines. This stainless steel system features dual rear or side exits and is designed for 2- and 4-wheel-drive models. It does not fit models equipped with the Multimatic suspension option.\u003c\/p\u003e\u003cp\u003eDual 2.50-inch mandrel-bent 16-gauge 409 stainless steel tubing supports exhaust flow and durability. The 50 Series Big Block performance muffler produces a deep, moderate performance tone. Testing indicates gains of up to 4 horsepower and 11 lb-ft of torque at the rear wheels over stock. Dual 3.50-inch polished tips provide a custom appearance.\u003c\/p\u003e\u003cp\u003eThe system uses factory hanger locations and includes complete installation hardware and instructions for an at-home installation. It fits 147-inch and 157-inch wheelbases and is backed by Flowmaster's Lifetime Limited Warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e Cat-back exhaust system, performance muffler, polished exhaust tips, installation hardware, factory-styled hangers and installation instructions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e 2019–2026 Chevrolet Silverado and GMC Sierra with 2.7-liter engines, including 2- and 4-wheel-drive models. Does not fit vehicles with the Multimatic suspension option.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExhaust tubing: Dual 2.50-inch mandrel-bent 16-gauge 409 stainless steel tubing supports exhaust flow and durability.\u003c\/li\u003e\n\u003cli\u003ePerformance muffler: 50 Series Big Block muffler delivers a deep, moderate performance tone.\u003c\/li\u003e\n\u003cli\u003ePerformance gains: Provides gains of up to 4 horsepower and 11 lb-ft of torque at the rear wheels over stock.\u003c\/li\u003e\n\u003cli\u003eExit design: Dual 3.50-inch polished tips support dual rear or side exhaust exits and provide a custom appearance.\u003c\/li\u003e\n\u003cli\u003eInstallation: Uses existing factory hanger locations and includes complete hardware and installation instructions.\u003c\/li\u003e\n\u003cli\u003eApplication: Fits 2019–2026 Chevrolet Silverado and GMC Sierra trucks with 2.7-liter engines and 147-inch or 157-inch wheelbases.\u003c\/li\u003e\n\u003cli\u003eDrivetrain fitment: Designed for 2- and 4-wheel-drive models; does not fit models with the Multimatic suspension option.\u003c\/li\u003e\n\u003cli\u003eWarranty: Backed by Flowmaster's Lifetime Limited Warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2019 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2019 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2019 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2019 GMC Sierra 1500 Base\u003cbr\u003e\n2019 GMC Sierra 1500 Elevation\u003cbr\u003e\n2019 GMC Sierra 1500 SLE\u003cbr\u003e\n2020 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2020 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2020 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2020 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2020 GMC Sierra 1500 Base\u003cbr\u003e\n2020 GMC Sierra 1500 Elevation\u003cbr\u003e\n2020 GMC Sierra 1500 SLE\u003cbr\u003e\n2021 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2021 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2021 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2021 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2021 GMC Sierra 1500 Base\u003cbr\u003e\n2021 GMC Sierra 1500 Elevation\u003cbr\u003e\n2021 GMC Sierra 1500 SLE\u003cbr\u003e\n2022 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2022 Chevrolet Silverado 1500 Custom Trail Boss\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2022 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2022 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LTD Custom\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LTD Custom Trail Boss\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LTD LT\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LTD RST\u003cbr\u003e\n2022 Chevrolet Silverado 1500 LTD WT\u003cbr\u003e\n2022 GMC Sierra 1500 Elevation\u003cbr\u003e\n2022 GMC Sierra 1500 Pro\u003cbr\u003e\n2022 GMC Sierra 1500 SLE\u003cbr\u003e\n2022 GMC Sierra 1500 Limited Elevation\u003cbr\u003e\n2022 GMC Sierra 1500 Limited Pro\u003cbr\u003e\n2022 GMC Sierra 1500 Limited SLE\u003cbr\u003e\n2023 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2023 Chevrolet Silverado 1500 Custom Trail Boss\u003cbr\u003e\n2023 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2023 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2023 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2023 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2023 GMC Sierra 1500 Elevation\u003cbr\u003e\n2023 GMC Sierra 1500 Pro\u003cbr\u003e\n2023 GMC Sierra 1500 SLE\u003cbr\u003e\n2024 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2024 Chevrolet Silverado 1500 Custom Trail Boss\u003cbr\u003e\n2024 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2024 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2024 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2024 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2024 GMC Sierra 1500 Elevation\u003cbr\u003e\n2024 GMC Sierra 1500 Pro\u003cbr\u003e\n2024 GMC Sierra 1500 SLE\u003cbr\u003e\n2025 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2025 Chevrolet Silverado 1500 Custom Trail Boss\u003cbr\u003e\n2025 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2025 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2025 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2025 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2025 GMC Sierra 1500 Elevation\u003cbr\u003e\n2025 GMC Sierra 1500 Pro\u003cbr\u003e\n2025 GMC Sierra 1500 SLE\u003cbr\u003e\n2026 Chevrolet Silverado 1500 Custom\u003cbr\u003e\n2026 Chevrolet Silverado 1500 Custom Trail Boss\u003cbr\u003e\n2026 Chevrolet Silverado 1500 LT\u003cbr\u003e\n2026 Chevrolet Silverado 1500 LT Trail Boss\u003cbr\u003e\n2026 Chevrolet Silverado 1500 RST\u003cbr\u003e\n2026 Chevrolet Silverado 1500 WT\u003cbr\u003e\n2026 GMC Sierra 1500 Elevation\u003cbr\u003e\n2026 GMC Sierra 1500 Pro\u003cbr\u003e\n2026 GMC Sierra 1500 SLE\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; 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