{"product_id":"mad-secondary-downpipes-bmw-f90-m5-f91-f92-f93-m8-s63","title":"MAD Secondary 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 Secondary Downpipes\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBMW F90 M5 | BMW F91\/F92\/F93 M8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eImprove exhaust flow and sharpen the performance of your S63-powered BMW with MAD Secondary Downpipes. Designed as a direct replacement for the factory secondary downpipes, this system reduces exhaust restriction while supporting quicker turbo response, a more aggressive exhaust note, and increased performance potential.\u003c\/p\u003e\n\u003cp\u003eManufactured from premium stainless steel, the downpipes feature smooth mandrel bends and integrated flex sections for durability, proper movement, and precise fitment. They connect directly to the factory exhaust system without cutting or welding, making them a clean bolt-on upgrade for stock and modified vehicles.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePremium stainless-steel construction\u003c\/li\u003e\n\u003cli\u003eReplaces the factory secondary downpipes\u003c\/li\u003e\n\u003cli\u003eSmooth mandrel bends for improved exhaust flow\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 and throttle response\u003c\/li\u003e\n\u003cli\u003eMore aggressive exhaust tone without excessive drone\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\u003eInstallation hardware and gaskets included\u003c\/li\u003e\n\u003cli\u003eNo check-engine light expected from the secondary-downpipe replacement\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\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 performance 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\u003eEnhanced horsepower and torque potential\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eActual 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 Coupe (F92)\u003c\/li\u003e\n\u003cli\u003eBMW M8 Convertible (F91)\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\u003eAvailability\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIn Stock \u0026amp; Ready to Ship\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOrders typically ship within \u003cstrong\u003e1–2 business days\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation is recommended. Uproar Customs does not provide installation instructions or technical support for self-installation.\u003c\/p\u003e\n\u003cdiv class=\"product__description rte quick-add-hidden\"\u003e\n\u003cp\u003e\u003cstrong\u003eEmissions Non-Compliance.\u003c\/strong\u003e\u003cspan\u003e Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. Its use is prohibited in any motor vehicle that is subject to emissions inspection or control. Legal in California only for racing vehicles that may never be used, or registered or licensed for use, upon a highway.\u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003eDISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only, never to be driven on public roads. This product is or contains a Racing Cat Bypass Pipe, which will give you check engine lights on OBD2 cars. We suggest pairing this product with racing software to prevent fault codes and check engine lights. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified (CARB) and not EPA certified. You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.\u003c\/p\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\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":47288084299945,"sku":null,"price":349.99,"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-secondary-downpipes-s63r-45069668974875.webp?v=1784919757","url":"https:\/\/www.uproarcustoms.com\/products\/mad-secondary-downpipes-bmw-f90-m5-f91-f92-f93-m8-s63","provider":"Uproar Customs","version":"1.0","type":"link"}