{"product_id":"bmw-m5-f90-m8-f91-f92-f93-s63-catless-downpipes","title":"BMW M5 F90 \/ M8 F91 F92 F93 S63 Catless Downpipes","description":"\u003ch6\u003eSS304 Primary \u0026amp; Secondary Catless Downpipes for the BMW M5 F90 and M8 F9X S63 Twin-Turbo V8\u003cbr\u003e\n\u003c\/h6\u003e\n\u003cp\u003eDesigned for the \u003cstrong\u003eBMW M5 F90 and BMW M8 F91, F92 and F93\u003c\/strong\u003e equipped with the \u003cstrong\u003eS63 4.4L twin-turbo V8 engine\u003c\/strong\u003e, this complete \u003cstrong\u003eprimary and secondary catless downpipe set\u003c\/strong\u003e replaces both stages of the factory catalytic converter system with significantly freer-flowing exhaust sections.\u003c\/p\u003e\n\u003cp\u003eManufactured from \u003cstrong\u003ehigh-quality SS304 stainless steel\u003c\/strong\u003e, the downpipes are built to withstand the extreme exhaust temperatures generated directly after the twin turbochargers while offering excellent corrosion resistance, strength and long-term durability. The smooth mandrel-style pipe routing helps maintain unrestricted exhaust flow throughout the system.\u003c\/p\u003e\n\u003cp\u003eThe factory S63 exhaust layout uses \u003cstrong\u003etwo primary catalytic converter sections and two secondary catalytic converter sections\u003c\/strong\u003e. This full catless configuration replaces all four catalyst sections, significantly reducing post-turbo exhaust restriction and delivering a much more aggressive exhaust note, increased turbocharger sound and a more performance-focused driving character.\u003c\/p\u003e\n\u003cp\u003eThe system is designed around the factory \u003cstrong\u003eS63 turbocharger and exhaust connection points\u003c\/strong\u003e for vehicle-specific fitment across compatible F90 M5 and F9X M8 applications. Original oxygen sensors and applicable OEM hardware should be transferred during installation where required. Professional installation is strongly recommended due to the turbocharger connections, sensor locations and limited access around the factory exhaust assembly.\u003c\/p\u003e\n\u003ch6\u003eKey Features:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eSS304 stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature and corrosion-resistant material\u003c\/li\u003e\n\u003cli\u003eComplete primary and secondary catless downpipe system\u003c\/li\u003e\n\u003cli\u003eReplaces 2 factory primary catalytic converter sections\u003c\/li\u003e\n\u003cli\u003eReplaces 2 factory secondary catalytic converter sections\u003c\/li\u003e\n\u003cli\u003eDesigned for BMW S63 4.4L twin-turbo V8\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW M5 F90\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW M8 F91 \/ F92 \/ F93\u003c\/li\u003e\n\u003cli\u003eMaximum-flow catless exhaust configuration\u003c\/li\u003e\n\u003cli\u003eSignificantly reduced post-turbo exhaust restriction\u003c\/li\u003e\n\u003cli\u003eMore aggressive exhaust sound\u003c\/li\u003e\n\u003cli\u003eIncreased turbocharger sound\u003c\/li\u003e\n\u003cli\u003eSuitable for tuned and performance-focused builds\u003c\/li\u003e\n\u003cli\u003eVehicle-specific exhaust routing\u003c\/li\u003e\n\u003cli\u003eProfessional installation strongly recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003ePackage Includes:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003e2 × SS304 Catless Primary Downpipe Sections\u003c\/li\u003e\n\u003cli\u003e2 × SS304 Catless Secondary Downpipe Sections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eImportant Notice:\u003c\/h6\u003e\n\u003cp\u003eThis product is intended for \u003cstrong\u003eoff-road, track and motorsport use only\u003c\/strong\u003e. Removal of factory catalytic converters may not comply with emissions or public road-use regulations in your country or region.\u003c\/p\u003e\n\u003cp\u003eInstallation of catless downpipes may trigger a \u003cstrong\u003eCheck Engine Light (CEL)\u003c\/strong\u003e due to changes in catalytic converter monitoring and oxygen sensor readings. Appropriate ECU software or calibration may be required depending on the vehicle setup.\u003c\/p\u003e\n\u003cp\u003eIt is the customer's responsibility to confirm all applicable local emissions, inspection and road-use regulations before purchasing or installing this product.\u003c\/p\u003e","brand":"EURO TUNED","offers":[{"title":"Default Title","offer_id":63411046973770,"sku":"EUR-10685-DP","price":659.54,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/0239\/5978\/files\/bmw-s63-primary-secondary-catless-downpipes-complete-kit.jpg?v=1788369400","url":"https:\/\/eutuned.com\/products\/bmw-m5-f90-m8-f91-f92-f93-s63-catless-downpipes","provider":"Euro Tuned","version":"1.0","type":"link"}