{"product_id":"mad-primary-downpipes-bmw-f90-m5-f91-f92-f93-m8-s63","title":"MAD Primary Downpipes | BMW F90 M5 | F91\/F92\/F93 M8 S63","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMAD Primary Downpipes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBMW F90 M5 | BMW F91\/F92\/F93 M8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock improved exhaust flow, faster turbo response, and a more aggressive exhaust note with MAD Primary Downpipes. Designed for S63-powered BMW models, these downpipes replace the restrictive factory primary downpipe sections with a high-flow performance upgrade.\u003c\/p\u003e\n\u003cp\u003eConstructed from premium T304 stainless steel, the downpipes feature smooth mandrel bends and carefully designed transitions to reduce backpressure and improve exhaust-gas flow. Integrated flex sections allow for proper movement while helping maintain reliable fitment under demanding driving conditions.\u003c\/p\u003e\n\u003cp\u003eThe direct bolt-on design connects to the factory exhaust system without cutting or welding. Necessary installation hardware and gaskets are included.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePremium T304 stainless-steel construction\u003c\/li\u003e\n\u003cli\u003eReplaces the factory primary downpipes\u003c\/li\u003e\n\u003cli\u003eSmooth mandrel bends for maximum airflow\u003c\/li\u003e\n\u003cli\u003eIntegrated flex sections\u003c\/li\u003e\n\u003cli\u003eHelps reduce exhaust backpressure\u003c\/li\u003e\n\u003cli\u003eSupports quicker turbo spool\u003c\/li\u003e\n\u003cli\u003eImproved throttle response\u003c\/li\u003e\n\u003cli\u003eMore aggressive exhaust tone\u003c\/li\u003e\n\u003cli\u003eCompatible with right-hand-drive and left-hand-drive vehicles\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation\u003c\/li\u003e\n\u003cli\u003eNo cutting or welding required\u003c\/li\u003e\n\u003cli\u003eNecessary hardware and gaskets included\u003c\/li\u003e\n\u003cli\u003eLifetime warranty against defects and fitment issues\u003c\/li\u003e\n\u003cli\u003e90-day return period\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePotential gains of up to 30 horsepower on stock turbochargers\u003c\/li\u003e\n\u003cli\u003eAdditional power potential with upgraded turbochargers\u003c\/li\u003e\n\u003cli\u003eImproved exhaust flow\u003c\/li\u003e\n\u003cli\u003eFaster turbo response\u003c\/li\u003e\n\u003cli\u003eIncreased horsepower and torque potential\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eActual performance results depend on tuning, fuel, supporting modifications, and vehicle condition.\u003c\/p\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M5 (F90)\u003c\/li\u003e\n\u003cli\u003eBMW M8 Convertible (F91)\u003c\/li\u003e\n\u003cli\u003eBMW M8 Coupe (F92)\u003c\/li\u003e\n\u003cli\u003eBMW M8 Gran Coupe (F93)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e S63 Twin-Turbo V8\u003c\/p\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary downpipes may trigger a check-engine light.\u003c\/li\u003e\n\u003cli\u003eECU tuning may be required for proper operation.\u003c\/li\u003e\n\u003cli\u003eThese downpipes may not comply with emissions or road-use regulations in your area.\u003c\/li\u003e\n\u003cli\u003eIntended for off-road or competition use where permitted.\u003c\/li\u003e\n\u003cli\u003eConfirm exact vehicle compatibility before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailability\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePre-Order\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOnce available, orders generally ship within \u003cstrong\u003e1–2 business days\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation and proper tuning are strongly recommended. Uproar Customs does not provide installation instructions or technical support for self-installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Uproar Customs","offers":[{"title":"Default Title","offer_id":47288162484393,"sku":null,"price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/1575\/4153\/files\/mad-performance-mad-bmw-f90-m5-f92-m8-primary-downpipes-s63r-45407561122075.webp?v=1784922481","url":"https:\/\/www.uproarcustoms.com\/products\/mad-primary-downpipes-bmw-f90-m5-f91-f92-f93-m8-s63","provider":"Uproar Customs","version":"1.0","type":"link"}