{"product_id":"flowmaster-21-25-ford-f150-2-7l-3-5l-5-0l-american-thunder-cat-back-exhaust-system","title":"21-26 Ford F-150 2.7L\/3.5L\/5.0L Flowmaster 817979 American Thunder Cat-Back Exhaust System","description":"\u003ch2\u003e\u003cstrong\u003eFlowmaster 817979 American Thunder Cat-Back Exhaust System\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Flowmaster 817979 American Thunder Cat-Back Exhaust System delivers a powerful combination of aggressive sound, enhanced exhaust flow, and durable stainless steel construction for 2021-2026 Ford F-150 trucks equipped with 2.7L, 3.5L, and 5.0L engines. Designed with a Super 40 Series performance muffler, this exhaust system produces a deep, performance-oriented tone while utilizing Delta Flow Technology to improve performance and reduce unwanted exhaust drone. The mandrel-bent 409 stainless steel tubing helps maximize airflow and long-term durability, while the dual exit design allows customization with both rear and side exit tailpipe options. With factory mounting locations, included installation hardware, and a Lifetime Limited Warranty from Flowmaster, this cat-back exhaust system is an ideal upgrade for truck owners seeking a classic performance appearance and enhanced driving experience.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2021-2026 Ford F-150 trucks with 2.7L, 3.5L, and 5.0L engines.\u003c\/li\u003e\n\u003cli\u003eAmerican Thunder Series cat-back exhaust system with a Super 40 Series performance muffler.\u003c\/li\u003e\n\u003cli\u003eProduces a deep and aggressive performance exhaust tone.\u003c\/li\u003e\n\u003cli\u003eIncludes rear and side exit tailpipes for customizable exhaust appearance.\u003c\/li\u003e\n\u003cli\u003eUses factory hanger locations for a straightforward installation.\u003c\/li\u003e\n\u003cli\u003eMandrel-bent 409 stainless steel tubing maximizes exhaust flow and durability.\u003c\/li\u003e\n\u003cli\u003eDelta Flow Technology helps improve performance and reduce exhaust drone.\u003c\/li\u003e\n\u003cli\u003eProvides maximum dyno gains of 11 HP and 10 LB.FT. at the rear wheels.\u003c\/li\u003e\n\u003cli\u003eClears the factory spare tire location.\u003c\/li\u003e\n\u003cli\u003eIncludes polished stainless steel exhaust tips with a classic performance appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eImproves the overall performance character of the Ford F-150 with increased exhaust flow.\u003c\/li\u003e\n\u003cli\u003eProvides a bold, aggressive exhaust sound while maintaining drivability.\u003c\/li\u003e\n\u003cli\u003eEnhances the truck’s exterior styling with polished stainless steel tips and dual exit options.\u003c\/li\u003e\n\u003cli\u003eOffers long-lasting corrosion resistance with stainless steel components.\u003c\/li\u003e\n\u003cli\u003eAllows installation without requiring custom fabrication by using factory mounting points.\u003c\/li\u003e\n\u003cli\u003eIncludes all required hardware for installation convenience.\u003c\/li\u003e\n\u003cli\u003eBacked by Flowmaster’s Lifetime Limited Warranty for added product confidence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Flowmaster\u003c\/li\u003e\n\u003cli\u003ePart Number: 817979\u003c\/li\u003e\n\u003cli\u003eProduct Type: Cat-Back Exhaust System\u003c\/li\u003e\n\u003cli\u003eExhaust Series: American Thunder\u003c\/li\u003e\n\u003cli\u003eExhaust Grade: Performance\u003c\/li\u003e\n\u003cli\u003eMaterial: 409 Stainless Steel tubing and muffler body\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Material: 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFinish: Natural stainless steel finish\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Finish: Polished\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Color: Silver\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Diameter: 3.50 inches\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Quantity: 2\u003c\/li\u003e\n\u003cli\u003eTail Pipe Diameter: 2.50 inches\u003c\/li\u003e\n\u003cli\u003eMain Piping Diameter: 2.50 inches\u003c\/li\u003e\n\u003cli\u003eMuffler Series: Super 40 Series\u003c\/li\u003e\n\u003cli\u003eMuffler Type: Chambered\u003c\/li\u003e\n\u003cli\u003eMuffler Body Shape: Oval\u003c\/li\u003e\n\u003cli\u003eMuffler Body Dimensions: 5.00 inches height x 10.00 inches width x 10.25 inches length\u003c\/li\u003e\n\u003cli\u003eMuffler Overall Length: 16.50 inches\u003c\/li\u003e\n\u003cli\u003eMuffler Finish: Black high-temperature paint finish\u003c\/li\u003e\n\u003cli\u003eExit Style: Dual Out Rear and Dual Out Side\u003c\/li\u003e\n\u003cli\u003eInstallation Type: Uses factory hangers\u003c\/li\u003e\n\u003cli\u003eClamping Type: Flat Band\u003c\/li\u003e\n\u003cli\u003eSound Level: Aggressive \/ Moderate\u003c\/li\u003e\n\u003cli\u003eCatalytic Converter Included: No\u003c\/li\u003e\n\u003cli\u003eValve Included: No\u003c\/li\u003e\n\u003cli\u003eCARB Compliant: Yes\u003c\/li\u003e\n\u003cli\u003eEmission Code: 5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall Difficulty Level\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEasy installation. This Flowmaster cat-back exhaust system is designed to use factory mounting locations and includes the necessary hardware for a smooth installation. Installation can typically be completed in approximately 1 hour, making it a convenient upgrade for enthusiasts looking to improve their truck’s sound and appearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2021-2026 Ford F-150 with 2.7L engine\u003c\/li\u003e\n\u003cli\u003e2021-2026 Ford F-150 with 3.5L EcoBoost engine\u003c\/li\u003e\n\u003cli\u003e2021-2026 Ford F-150 with 5.0L engine\u003c\/li\u003e\n\u003cli\u003eFits 2-wheel drive and 4-wheel drive models\u003c\/li\u003e\n\u003cli\u003eDoes not fit regular cab models with 6.5-foot bed\u003c\/li\u003e\n\u003cli\u003eDoes not fit Hybrid PowerBoost models\u003c\/li\u003e\n\u003cli\u003eDoes not fit models equipped with OEM active exhaust option\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor questions about this product or to report product description inaccuracies, contact the MPT Performance experts at (407) 636-7077 or by email.\u003c\/p\u003e","brand":"Flowmaster","offers":[{"title":"Default Title","offer_id":47766407217330,"sku":"FLO817979","price":1049.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/4341\/8034\/files\/ae7c54f39ba5d261480b7f3995b600aaL.jpg?v=1785248082","url":"https:\/\/morepowertuning.com\/products\/flowmaster-21-25-ford-f150-2-7l-3-5l-5-0l-american-thunder-cat-back-exhaust-system","provider":"More Power Tuning","version":"1.0","type":"link"}