{"product_id":"flowmaster-18-23-mustang-5-0l-american-thunder-axle-back-exhaust-system-w-valves","title":"18-23 Ford Mustang GT 5.0L V8 Flowmaster 817799 American Thunder Axle-back Exhaust System","description":"\u003ch2\u003e\u003cstrong\u003eFlowmaster American Thunder Axle-Back Exhaust System for 2018-2023 Ford Mustang GT 5.0L with Active Exhaust\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cstrong\u003ePart Number: 817799\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eTransform the sound and appearance of the 2018-2023 Ford Mustang GT 5.0L with the Flowmaster American Thunder Axle-Back Exhaust System. Engineered specifically for Mustang GT coupes and convertibles equipped with the factory Active Performance Exhaust, this premium axle-back system delivers the best of both worlds. With the exhaust valves closed, the race-proven Outlaw® mufflers produce a refined yet moderately aggressive tone for comfortable cruising. Open the factory valves and the system unleashes an aggressive, wide-open exhaust note worthy of the Mustang's legendary V8 performance. Constructed from durable stainless steel with large mandrel-bent tubing and finished with quad polished 304 stainless steel tips, this system enhances exhaust flow, improves durability, and gives the rear of the vehicle an unmistakable performance appearance. Designed to reuse the factory exhaust actuators and mounting locations, this high-quality Flowmaster system offers an exceptional combination of performance, sound, fitment, and long-lasting value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2018-2023 Ford Mustang GT 5.0L models equipped with Factory Active Performance Exhaust.\u003c\/li\u003e\n\u003cli\u003ePremium American Thunder axle-back exhaust system.\u003c\/li\u003e\n\u003cli\u003eRace-proven Outlaw® mufflers provide moderate sound with valves closed and aggressive sound when opened.\u003c\/li\u003e\n\u003cli\u003eLarge 3.00-inch mandrel-bent 409 stainless steel tubing promotes improved exhaust flow.\u003c\/li\u003e\n\u003cli\u003eOEM-style exhaust valves included for compatibility with factory active exhaust actuators.\u003c\/li\u003e\n\u003cli\u003eQuad 4.00-inch polished double-wall 304 stainless steel exhaust tips with embossed Flowmaster logo.\u003c\/li\u003e\n\u003cli\u003eStraight-through performance muffler design.\u003c\/li\u003e\n\u003cli\u003eUses factory hanger locations for a precise fit.\u003c\/li\u003e\n\u003cli\u003eIncludes clamps, hardware, and installation instructions.\u003c\/li\u003e\n\u003cli\u003eManufactured from corrosion-resistant stainless steel for long service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduces an aggressive muscle car exhaust tone while retaining factory active exhaust functionality.\u003c\/li\u003e\n\u003cli\u003eImproves exhaust flow for enhanced overall performance characteristics.\u003c\/li\u003e\n\u003cli\u003eMaintains comfortable cruising with valves closed while delivering an exhilarating exhaust note on demand.\u003c\/li\u003e\n\u003cli\u003eAdds an aggressive rear appearance with polished quad stainless steel tips.\u003c\/li\u003e\n\u003cli\u003eDirect-fit design minimizes installation time and eliminates unnecessary modifications.\u003c\/li\u003e\n\u003cli\u003eBuilt from premium stainless steel materials for exceptional durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003eBacked by Flowmaster's Lifetime Limited Warranty for long-term peace of mind.\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: 817799\u003c\/li\u003e\n\u003cli\u003eProduct Type: Axle-Back Exhaust System\u003c\/li\u003e\n\u003cli\u003eExhaust Series: American Thunder\u003c\/li\u003e\n\u003cli\u003eSound Level: Aggressive \/ Moderate\u003c\/li\u003e\n\u003cli\u003eVehicle Compatibility: Factory Active Performance Exhaust equipped vehicles only\u003c\/li\u003e\n\u003cli\u003eMain Pipe Diameter: 3.00 inches\u003c\/li\u003e\n\u003cli\u003ePipe Material: 409 Stainless Steel\u003c\/li\u003e\n\u003cli\u003ePipe Finish: Natural\u003c\/li\u003e\n\u003cli\u003eMuffler Material: 409 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eMuffler Finish: Black High-Temperature Paint\u003c\/li\u003e\n\u003cli\u003eMuffler Shape: Oval\u003c\/li\u003e\n\u003cli\u003eMuffler Quantity: 2\u003c\/li\u003e\n\u003cli\u003eValve Type: OEM-Style Valves\u003c\/li\u003e\n\u003cli\u003eValve Actuators: Reuses factory OEM actuators\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Material: 304 Stainless Steel\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: 4.00 inches\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Length: 5.25 inches\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Style: Double-Wall Round Angle Cut\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Quantity: 4\u003c\/li\u003e\n\u003cli\u003eExit Style: Dual Rear Exit\u003c\/li\u003e\n\u003cli\u003eInlet Connection: Slip-Fit Clamp-On\u003c\/li\u003e\n\u003cli\u003eClamps Included: Yes\u003c\/li\u003e\n\u003cli\u003eHangers Included: Yes\u003c\/li\u003e\n\u003cli\u003eCatalytic Converters Included: No\u003c\/li\u003e\n\u003cli\u003eCalifornia Proposition 65: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall Difficulty Level\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEasy.\u003c\/strong\u003e This direct-fit axle-back system is designed to utilize the factory hanger locations and reuse the OEM active exhaust actuators. All required clamps, hardware, and detailed instructions are included. Basic hand tools and cutting of the factory exhaust are required. Installation can be completed in approximately \u003cstrong\u003e1 hour\u003c\/strong\u003e by an experienced DIY enthusiast or professional installer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2018 Ford Mustang GT Coupe 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2018 Ford Mustang GT Convertible 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2019 Ford Mustang GT Coupe 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2019 Ford Mustang GT Convertible 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2020 Ford Mustang GT Coupe 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2020 Ford Mustang GT Convertible 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2021 Ford Mustang GT Coupe 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2021 Ford Mustang GT Convertible 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2022 Ford Mustang GT Coupe 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2022 Ford Mustang GT Convertible 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2023 Ford Mustang GT Coupe 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e2023 Ford Mustang GT Convertible 5.0L V8 with Factory Active Performance Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf there are any questions about this product or if a product description inaccuracy needs to be reported, please contact the MPT Performance experts at (407) 636-7077 or by email for assistance.\u003c\/p\u003e","brand":"Flowmaster","offers":[{"title":"Default Title","offer_id":47766406627506,"sku":"FLO817799","price":1899.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/4341\/8034\/files\/cf135c531f9dcec0e18241b68d837304L.jpg?v=1785248076","url":"https:\/\/morepowertuning.com\/products\/flowmaster-18-23-mustang-5-0l-american-thunder-axle-back-exhaust-system-w-valves","provider":"More Power Tuning","version":"1.0","type":"link"}