{"product_id":"gca-performance-s63-downpipes-bmw-m5-m5-competition-f90-2018-2023","title":"Performance S63 Downpipes | BMW M5 \u0026 M5 Competition (F90) | 2018–2023","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\u003ch2\u003eGCA Performance S63 Downpipes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBMW M5 \u0026amp; M5 Competition (F90) | 2018–2023 | S63 4.4L Twin-Turbo V8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUnlock a more aggressive exhaust note and increased flow from your F90 M5 with the GCA Performance S63 Downpipes. Designed specifically for BMW’s 4.4L twin-turbo S63 engine, these downpipes reduce exhaust restriction and backpressure while supporting improved turbo response and increased horsepower and torque potential.\u003c\/p\u003e\n\u003cp\u003eConstructed from high-quality T304 stainless steel and finished with precision TIG welds, each set is engineered for strength, durability, and vehicle-specific fitment. Multiple configurations are available, including racing catless downpipes, 200-cell high-flow catalytic converters, and optional heat shielding.\u003c\/p\u003e\n\u003cp\u003eWhether you're building a tuned street car or a dedicated performance setup, these downpipes provide the airflow and sound needed to bring the S63 V8 to life.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically for the BMW S63 4.4L twin-turbo V8\u003c\/li\u003e\n\u003cli\u003eHigh-quality T304 stainless-steel construction\u003c\/li\u003e\n\u003cli\u003ePrecision TIG-welded joints\u003c\/li\u003e\n\u003cli\u003eReduced exhaust restriction and backpressure\u003c\/li\u003e\n\u003cli\u003eSupports increased horsepower and torque potential\u003c\/li\u003e\n\u003cli\u003eImproved turbo response\u003c\/li\u003e\n\u003cli\u003eMore aggressive exhaust tone\u003c\/li\u003e\n\u003cli\u003eDirect vehicle-specific fitment\u003c\/li\u003e\n\u003cli\u003eFully reversible to the factory setup\u003c\/li\u003e\n\u003cli\u003eAll required mounting hardware included\u003c\/li\u003e\n\u003cli\u003eOptional integrated heat shielding\u003c\/li\u003e\n\u003cli\u003eAvailable with racing catless or 200-cell high-flow catalytic converters\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1-year manufacturer warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Configurations\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCatalytic Converter\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRacing Downpipes — No Catalytic Converter\u003c\/li\u003e\n\u003cli\u003e200-Cell Euro 6 Sport High-Flow Catalytic Converter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHeat Shield\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo Heat Shield\u003c\/li\u003e\n\u003cli\u003eIntegrated Heat Shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M5 (F90): 2018–2023\u003c\/li\u003e\n\u003cli\u003eBMW M5 Competition (F90): 2019–2023\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e S63 4.4L Twin-Turbo V8\u003c\/p\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cp\u003eThe racing\/catless configuration is intended for \u003cstrong\u003ecompetition or off-road use where permitted\u003c\/strong\u003e and may not comply with federal, state, or local emissions regulations. A check-engine light or ECU calibration requirements may occur depending on configuration and vehicle setup.\u003c\/p\u003e\n\u003cp\u003eHigh-flow catalytic converters should \u003cstrong\u003enot be assumed to guarantee emissions or inspection compliance\u003c\/strong\u003e. Check applicable laws before ordering.\u003c\/p\u003e\n\u003ch3\u003eAvailability \u0026amp; Shipping\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIn stock.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFree standard shipping to the lower 48 states\u003c\/li\u003e\n\u003cli\u003eEstimated delivery: \u003cstrong\u003e5–8 business days\u003c\/strong\u003e, depending on location\u003c\/li\u003e\n\u003cli\u003eShips via UPS or FedEx\u003c\/li\u003e\n\u003cli\u003eFront racing pipes may require approximately \u003cstrong\u003e5 business days of processing\u003c\/strong\u003e before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eProfessional installation is strongly recommended to ensure correct sealing, sensor placement, clearance, and secure mounting.\u003c\/p\u003e\n\u003cp\u003eUproar Customs does not provide installation guides 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":"No Heat Shield \/ Racing Downpipe (No Cat)","offer_id":47339319361705,"sku":null,"price":899.99,"currency_code":"USD","in_stock":true},{"title":"No Heat Shield \/ 200 Cell Euro 6 Sport High Flow Cat","offer_id":47339319394473,"sku":null,"price":999.99,"currency_code":"USD","in_stock":true},{"title":"Yes Heat Shield \/ Racing Downpipe (No Cat)","offer_id":47339319427241,"sku":null,"price":949.99,"currency_code":"USD","in_stock":true},{"title":"Yes Heat Shield \/ 200 Cell Euro 6 Sport High Flow Cat","offer_id":47339319460009,"sku":null,"price":1099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0701\/1575\/4153\/files\/b6825804-fed2-4bda-beaa-5b5f31075f6d.png?v=1786408161","url":"https:\/\/www.uproarcustoms.com\/products\/gca-performance-s63-downpipes-bmw-m5-m5-competition-f90-2018-2023","provider":"Uproar Customs","version":"1.0","type":"link"}