{"product_id":"mad-bmw-f90-m5-full-catback-exhaust","title":"MAD BMW F90 M5 Full Catback Exhaust","description":"\u003cp\u003eThe MAD F90 M5 catback is a full system built to unlock the sound and performance the M5 always deserved. Premium materials, smart valving and serious flow gains make it one of the most complete upgrades you can bolt to the car.\u003c\/p\u003e\n\u003ch3\u003eSound \u0026amp; performance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eValved design\u003c\/strong\u003e that mirrors the factory setup — open the valves for a spirited, aggressive note, close them for a calm, comfortable cruise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep, resonant tone\u003c\/strong\u003e that really comes alive at higher RPM.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved exhaust flow\u003c\/strong\u003e for gains of \u003cstrong\u003eup to 15 whp\u003c\/strong\u003e, with smooth bends that keep things drone-free.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuild\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e304 stainless steel construction for durability and corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e4-inch oval tips (108mm x 102mm) in your choice of brushed, black, or carbon fiber.\u003c\/li\u003e\n\u003cli\u003eWorks with the OEM valves and bolts up to factory mounting points for a precise, hassle-free fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; shipping\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLifetime warranty against defects and fitment issues.\u003c\/li\u003e\n\u003cli\u003e90-day return window.\u003c\/li\u003e\n\u003cli\u003eOrders ship in 1–2 business days.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003e2017+ BMW F90 M5.\u003c\/p\u003e\n\u003cp\u003eFrom KORE SPEED — proudly Canadian-owned. Email \u003ca href=\"mailto:support@korespeed.com\"\u003esupport@korespeed.com\u003c\/a\u003e for fitment support.\u003c\/p\u003e","brand":"MAD","offers":[{"title":"Default Title","offer_id":51574530801720,"sku":null,"price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1775\/7947\/files\/IMG-20230513-WA0011__14681.1718658790.386.513.jpg?v=1764906359","url":"https:\/\/korespeed.com\/products\/mad-bmw-f90-m5-full-catback-exhaust","provider":"KORE SPEED","version":"1.0","type":"link"}