{"product_id":"flowmaster-18-23-mustang-5-0l-american-thunder-axle-back-exhaust-system-no-valves","title":"18-23 Ford Mustang GT 5.0L V8 Flowmaster 817807 American Thunder Axle-Back Exhaust System (No Valves)","description":"\u003ch2\u003e\u003cstrong\u003eFlowmaster American Thunder Axle-Back Exhaust System (No Valves) - Part #817807\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe Flowmaster American Thunder® Axle-Back Exhaust System is engineered to give the 2018-2023 Ford Mustang GT 5.0L a bold, unmistakable muscle car sound while improving exhaust flow and maintaining a comfortable interior tone during highway cruising. Designed specifically for Mustang GT models without the factory Active Performance Exhaust, this premium bolt-on system combines durable 409S stainless steel construction with legendary Super 44® chambered mufflers to deliver enhanced performance, aggressive exterior exhaust note, and long-lasting reliability. Finished with eye-catching quad 4.00-inch polished 304 stainless steel tips, this axle-back system provides an aggressive appearance that perfectly complements the S550 Mustang. Every kit includes the necessary hardware and utilizes the factory mounting locations, making it an excellent upgrade for enthusiasts looking for improved sound, premium quality, and hassle-free installation.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFlowmaster American Thunder® Axle-Back Exhaust System\u003c\/li\u003e\n\u003cli\u003ePart Number: 817807\u003c\/li\u003e\n\u003cli\u003eDesigned for 2018-2023 Ford Mustang GT 5.0L models without Factory Active Performance Exhaust Valves\u003c\/li\u003e\n\u003cli\u003eAggressive exterior exhaust tone with a moderate interior cruising sound\u003c\/li\u003e\n\u003cli\u003eDual Super 44® chambered performance mufflers\u003c\/li\u003e\n\u003cli\u003eMandrel-bent 3.00-inch 409S stainless steel tubing for maximum exhaust flow\u003c\/li\u003e\n\u003cli\u003eQuad 4.00-inch polished 304 stainless steel exhaust tips\u003c\/li\u003e\n\u003cli\u003eDyno-tuned to maximize horsepower, torque, and exhaust efficiency\u003c\/li\u003e\n\u003cli\u003eUses factory hanger locations for a true bolt-on installation\u003c\/li\u003e\n\u003cli\u003eIncludes clamps, hardware, and installation instructions\u003c\/li\u003e\n\u003cli\u003eFits both Coupe and Convertible models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eBenefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduces the signature deep Flowmaster performance exhaust sound Mustang enthusiasts demand.\u003c\/li\u003e\n\u003cli\u003eImproves exhaust flow for enhanced engine performance and throttle response.\u003c\/li\u003e\n\u003cli\u003ePremium stainless steel construction helps resist corrosion for long service life.\u003c\/li\u003e\n\u003cli\u003eLarge polished quad tips deliver an aggressive, factory-quality appearance.\u003c\/li\u003e\n\u003cli\u003eBolt-on design requires no welding for a straightforward installation.\u003c\/li\u003e\n\u003cli\u003eMaintains a comfortable cabin sound during normal cruising while delivering an aggressive tone during acceleration.\u003c\/li\u003e\n\u003cli\u003eBacked by Flowmaster's Lifetime Limited Warranty for long-term confidence and peace of mind.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eProduct Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Flowmaster\u003c\/li\u003e\n\u003cli\u003ePart Number: 817807\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\u003eMain Tubing 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 Series: Super 44®\u003c\/li\u003e\n\u003cli\u003eMuffler Type: Chambered Reflection\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 Quantity: 2\u003c\/li\u003e\n\u003cli\u003eMuffler Body Shape: Oval\u003c\/li\u003e\n\u003cli\u003eMuffler Body Dimensions: 13.00 in. Length x 9.50 in. Width x 4.00 in. Height\u003c\/li\u003e\n\u003cli\u003eExhaust Tip Quantity: 4\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 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 Style: Round, Double Wall, Angle Cut\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\u003eMounting Style: Uses Factory Hanger Locations\u003c\/li\u003e\n\u003cli\u003eSound Level: Aggressive Exterior \/ Moderate Interior\u003c\/li\u003e\n\u003cli\u003eValve Provision: None\u003c\/li\u003e\n\u003cli\u003eCatalytic Converters Included: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eInstall Difficulty Level\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis exhaust system is designed as a direct bolt-on upgrade that installs using the factory hanger locations without welding or permanent modifications. All required clamps, hardware, and instructions are included, making installation straightforward for most enthusiasts with basic hand tools. Under ideal conditions, installation can be completed in approximately \u003cstrong\u003e2 hours\u003c\/strong\u003e, making it an excellent weekend performance upgrade.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFits the following vehicles:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2018 Ford Mustang GT 5.0L V8 Coupe (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2018 Ford Mustang GT 5.0L V8 Convertible (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2019 Ford Mustang GT 5.0L V8 Coupe (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2019 Ford Mustang GT 5.0L V8 Convertible (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2020 Ford Mustang GT 5.0L V8 Coupe (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2020 Ford Mustang GT 5.0L V8 Convertible (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2021 Ford Mustang GT 5.0L V8 Coupe (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2021 Ford Mustang GT 5.0L V8 Convertible (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2022 Ford Mustang GT 5.0L V8 Coupe (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2022 Ford Mustang GT 5.0L V8 Convertible (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2023 Ford Mustang GT 5.0L V8 Coupe (Without Factory Active Performance Exhaust)\u003c\/li\u003e\n\u003cli\u003e2023 Ford Mustang GT 5.0L V8 Convertible (Without Factory Active Performance Exhaust)\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":47766406758578,"sku":"FLO817807","price":1249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0607\/4341\/8034\/files\/9c57ac4d81c702476e69c8043472882bL.jpg?v=1785248077","url":"https:\/\/morepowertuning.com\/products\/flowmaster-18-23-mustang-5-0l-american-thunder-axle-back-exhaust-system-no-valves","provider":"More Power Tuning","version":"1.0","type":"link"}