{"product_id":"flowmaster-20-25-gm-2500-3500-6-6l-gas-direct-fit-flowfx-muffler","title":"Flowmaster 20-25 GM 2500\/3500 6.6L GAS Direct Fit FlowFX Muffler","description":"Flowmaster's® Flow FX Direct-Fit Muffler exhaust system for the 2020-2026 GM 2500HD and 3500HD trucks with the 6.6L gas engines gives you a great value packed way to help you customize your GM truck to your personality. This performance muffler system fits both 2\/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.50-inch inlet pipe leading into a 409 stainless steel Flow FX series \"straight-through\" muffler for great sound and maximum performance and no drone. The muffler then connects to the factory tailpipe for a simple and effective performance upgrade. Max dyno gains of 7 hp and 5 lb-ft at the rear wheels. This results in better acceleration and towing performance.  The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Kits include installation instructions and all necessary hardware.  Backed by Flowmaster's Lifetime Limited Warranty.\nFits 20-26 GM 2500HD\/3500HD 6.6L Gas Engine FFX Direct Fit Muffler Exhaust System, 409 stainless steel\n\u003cul\u003e\n  \u003cli\u003eA tuned Flow FX style muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow with no drone\u003c\/li\u003e\n  \u003cli\u003eKit includes complete hardware and factory styled hangers in the stock locations for an easy installation\u003c\/li\u003e\n  \u003cli\u003e3.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability\u003c\/li\u003e\n  \u003cli\u003eMax increases of up to 7 hp and 5 lb-ft over the stock exhaust at the wheels\u003c\/li\u003e\n  \u003cli\u003eTuned performance muffler eliminates interior drone\u003c\/li\u003e\n  \u003cli\u003eMaintains factory warranty\u003c\/li\u003e\n  \u003cli\u003eLifetime Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD\u003cbr\u003e\n2020 GMC Sierra 2500 HD\u003cbr\u003e\n2020 GMC Sierra 3500 HD\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD\u003cbr\u003e\n2021 GMC Sierra 2500 HD\u003cbr\u003e\n2021 GMC Sierra 3500 HD\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD\u003cbr\u003e\n2022 GMC Sierra 2500 HD\u003cbr\u003e\n2022 GMC Sierra 3500 HD\u003cbr\u003e\n2023 Chevrolet Silverado 2500 HD\u003cbr\u003e\n2023 Chevrolet Silverado 3500 HD\u003cbr\u003e\n2023 GMC Sierra 2500 HD\u003cbr\u003e\n2023 GMC Sierra 3500 HD\u003cbr\u003e\n2024 Chevrolet Silverado 2500 HD\u003cbr\u003e\n2024 Chevrolet Silverado 3500 HD\u003cbr\u003e\n2024 GMC Sierra 2500 HD\u003cbr\u003e\n2024 GMC Sierra 3500 HD\u003cbr\u003e\n2025 Chevrolet Silverado 2500 HD\u003cbr\u003e\n2025 Chevrolet Silverado 3500 HD\u003cbr\u003e\n2025 GMC Sierra 2500 HD\u003cbr\u003e\n2025 GMC Sierra 3500 HD\u003cbr\u003e\n2026 Chevrolet Silverado 2500 HD\u003cbr\u003e\n2026 Chevrolet Silverado 3500 HD\u003cbr\u003e\n2026 GMC Sierra 2500 HD\u003cbr\u003e\n2026 GMC Sierra 3500 HD\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: false\u003cbr\u003e\nCarb Acknowledgement Required: false\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Y\u003cbr\u003e\nPart Type: automotive\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nUnits Per Sku: 1","brand":"Flowmaster","offers":[{"title":"Default Title","offer_id":49296808509659,"sku":"flo718155","price":425.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/8559\/1003\/files\/74c539c7f1a03a11f0b6161cdb0892dbL.jpg?v=1789169578","url":"https:\/\/hnbperformance.com\/products\/flowmaster-20-25-gm-2500-3500-6-6l-gas-direct-fit-flowfx-muffler","provider":"Hellnback Offroad \u0026 Performance","version":"1.0","type":"link"}