{"product_id":"2018-2023-ford-mustang-gt-fastback-3-dual-exit-catback-exhaust","title":"2018-2023 Ford Mustang GT Fastback - 3\" Dual Exit Catback Exhaust","description":"\u003cp\u003e\u003cstrong\u003e2018–2023 Ford Mustang GT 5.0 Coyote 3\" Catback Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Gen 3 Coyote is one of the best sounding modern V8 engines Ford has ever built. The Thermal R\u0026amp;D 3\" Catback Exhaust System for the 2018–2023 Mustang GT is engineered to bring that sound forward with a deeper, more aggressive tone while maintaining the daily drivability expected from a modern performance car.\u003c\/p\u003e\n\u003cp\u003eMost Mustang GT exhaust systems force you to choose between aggressive sound and highway comfort. Thermal R\u0026amp;D was engineered to deliver both. At the core is our proprietary\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTrue Helmholtz Technology\u003c\/strong\u003e, a precision-tuned resonance chamber system designed to eliminate the low-frequency cabin drone commonly found in aftermarket Mustang exhaust systems.\u003c\/p\u003e\n\u003cp\u003eThe result is a deeper, fuller sound under throttle with a clean, controlled tone while cruising. No rasp. No constant highway drone. Just a refined performance sound that matches the character of the 5.0 Coyote.\u003c\/p\u003e\n\u003cp\u003eConstructed from mandrel-bent\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eT304 stainless steel\u003c\/strong\u003e, this system delivers long-term corrosion resistance, consistent exhaust flow, and OEM-level fitment. The full 3\" design improves exhaust efficiency while maintaining strong sound quality across the RPM range.\u003c\/p\u003e\n\u003cp\u003eThe system installs using factory mounting locations with no cutting or modifications required. Header adapters are included for builds running aftermarket long tube headers.\u003c\/p\u003e\n\u003cp\u003eOut back, quad 4\" angle-cut tips are available in polished stainless or black coated finishes, giving the rear of the Mustang GT a clean, aggressive appearance that properly fills the factory valance.\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured in the USA and backed by a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eLifetime Warranty\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e⚠️\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis system fits 2018–2023 Mustang GT Fastback models\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewithout factory Active Exhaust\u003c\/strong\u003e. Does not fit Convertible models.\u003c\/p\u003e\n\u003cdiv class=\"trd-specs\"\u003e\n\u003ch4\u003eSystem Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFits 2018–2023 Ford Mustang GT 5.0 Coyote Fastback models\u003c\/li\u003e\n\u003cli\u003eFull 3\" mandrel-bent T304 stainless steel catback exhaust system\u003c\/li\u003e\n\u003cli\u003eTrue Helmholtz Technology for drone elimination\u003c\/li\u003e\n\u003cli\u003eDeep, aggressive exhaust tone without highway drone\u003c\/li\u003e\n\u003cli\u003eCenter straight-through muffler design\u003c\/li\u003e\n\u003cli\u003eQuad 4\" angle-cut tips available in polished or black coated finishes\u003c\/li\u003e\n\u003cli\u003eIncludes header adapters for aftermarket long tube headers\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation using OEM mounting points\u003c\/li\u003e\n\u003cli\u003eNo cutting or welding required\u003c\/li\u003e\n\u003cli\u003eManufactured in the USA\u003c\/li\u003e\n\u003cli\u003eLifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSound Clip\u003c\/h4\u003e\n\u003cdiv class=\"trd-video\"\u003e\u003ciframe title=\"Thermal R\u0026amp;D Mustang GT Catback Sound Test\" src=\"https:\/\/www.youtube.com\/embed\/Dn9zfwOjF0Y\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003ch4\u003eInstallation Video\u003c\/h4\u003e\n\u003cdiv class=\"trd-video\"\u003e\u003ciframe title=\"Thermal R\u0026amp;D Mustang GT Catback Installation\" src=\"https:\/\/www.youtube.com\/embed\/E8J1UBVieb4\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e","brand":"Thermal R\u0026D","offers":[{"title":"Black Coated","offer_id":52201209069869,"sku":null,"price":2307.0,"currency_code":"CAD","in_stock":true},{"title":"Polished","offer_id":52201209102637,"sku":null,"price":2307.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/4751\/2109\/files\/mustangfullblack.webp?v=1783121861","url":"https:\/\/houstonspeedfreaks.com\/en-ca\/products\/2018-2023-ford-mustang-gt-fastback-3-dual-exit-catback-exhaust","provider":"Houston Speed Freaks","version":"1.0","type":"link"}