{"product_id":"kyostar-catless-downpipe-for-2019-audi-c8-rs6-rs7-ea825-4-0t-v8-mild-hybrid","title":"KYOSTAR Catless Downpipe for 2019+ Audi C8 RS6 RS7 EA825 4.0T V8 Mild Hybrid","description":"\u003cdiv class=\"product-description\"\u003e\n\n\u003ch5\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKYOSTAR Catless Downpipe for 2019+ Audi C8 RS6 RS7 EA825 4.0T V8 Mild Hybrid\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nUpgrade your 2019+ Audi C8 RS6 or C8 RS7 equipped with the EA825 4.0T twin-turbo V8 Mild Hybrid quattro system with the KYOSTAR Catless Downpipe. Designed as a performance-oriented replacement for the factory downpipe configuration, this system provides an upgraded exhaust flow path for high-performance Audi RS applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe catless downpipe design removes the catalytic converter section from the exhaust assembly, creating a more direct turbocharger exhaust path for modified EA825 4.0T V8 vehicles. The vehicle-specific dual downpipe configuration is developed around the Audi C8 RS6 and RS7 platform with Mild Hybrid quattro compatibility.\n\u003c\/p\u003e\n\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\u003cp\u003eCatless downpipe designed for 2019+ Audi C8 RS6 and RS7 applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eDesigned for Audi EA825 4.0T twin-turbo V8 Mild Hybrid quattro vehicles.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eCatless configuration removes the catalytic converter section for a performance-focused exhaust layout.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eProvides a more direct exhaust path from the turbocharger compared with the factory catalytic downpipe configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eVehicle-specific pipe routing, flange locations, and mounting design for Audi C8 RS applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eDual downpipe configuration developed around the twin-turbo V8 exhaust layout.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003ePerformance exhaust upgrade suitable for modified Audi RS6 and RS7 vehicles.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eCan enhance turbocharger spool sound and exhaust tone compared with the factory catalytic downpipe setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eDesigned for enthusiasts seeking improved exhaust flow and a motorsport-inspired exhaust configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\u003cp\u003e2019+ Audi C8 RS6 — EA825 4.0T V8 Mild Hybrid quattro\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003e2019+ Audi C8 RS7 — EA825 4.0T V8 Mild Hybrid quattro\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\n\u003ch5\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e\n\u003cp\u003eThis product is a catless downpipe and does not include catalytic converters.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003ePlease verify your vehicle year, Audi chassis code, RS model, engine configuration, turbocharger outlet connection, exhaust layout, and mounting points before purchase.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eAudi C8 RS6 and RS7 exhaust configurations may vary depending on production year, market specification, and factory equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003ePlease compare your original downpipe assembly, flange connections, oxygen sensor locations, and exhaust routing with the product photos before installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cp\u003eCatless exhaust components may not comply with emissions regulations in certain regions. Please check local laws before purchase and installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\n\u003ch5\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nAudi C8 RS6 and RS7 models use different factory exhaust configurations depending on production year, regional specification, and equipment level. Please verify that your vehicle matches the listed EA825 4.0T V8 Mild Hybrid quattro application before purchase.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe supplied product information lists 2019+ Audi C8 RS6 and RS7 Mild Hybrid quattro applications. Compatibility should not be determined by engine displacement alone, as turbocharger connections, emissions equipment, and exhaust routing may vary.\n\u003c\/p\u003e\n\n\u003cp\u003e\nPlease verify turbo outlet connections, oxygen sensor positions, exhaust flange locations, mounting brackets, and downstream exhaust compatibility before installation.\n\u003c\/p\u003e\n\n\u003cp\u003e\nVehicles equipped with upgraded turbochargers, aftermarket exhaust systems, custom exhaust components, or other performance modifications may require additional fitment verification or installation adjustment.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eProfessional installation is recommended.\u003c\/strong\u003e Proper flange alignment, gasket sealing, oxygen sensor installation, exhaust connection tightening, and clearance inspection should be performed during installation.\n\u003c\/p\u003e\n\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003ctable style=\"width:100%; border-collapse:collapse;\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eKYOSTAR\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eKD5S029WG\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCatless Downpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003e2019+ Audi C8 RS6 \/ RS7\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003eEA825 4.0T Twin Turbo V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eVehicle System\u003c\/td\u003e\n\u003ctd\u003eMild Hybrid quattro\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eDownpipe Type\u003c\/td\u003e\n\u003ctd\u003eCatless\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eCatalytic Converter\u003c\/td\u003e\n\u003ctd\u003eNot Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eDual Turbo Downpipe System\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePerformance Exhaust Upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003ePackage Includes\u003c\/td\u003e\n\u003ctd\u003eLeft And Right Catless Downpipes As Shown\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\n\u003c\/table\u003e\n\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: What vehicles does this catless downpipe fit?\u003c\/strong\u003e\u003cbr\u003e\nA: This downpipe is designed for compatible 2019+ Audi C8 RS6 and RS7 models equipped with the EA825 4.0T V8 Mild Hybrid quattro system.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: What engine is this downpipe designed for?\u003c\/strong\u003e\u003cbr\u003e\nA: The supplied product information identifies this downpipe for the EA825 4.0T twin-turbo V8 engine.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Is this a catless downpipe?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. This product does not include catalytic converters and is designed as a catless performance downpipe.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Will this fit Audi C8 RS6?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The supplied fitment information lists 2019+ Audi C8 RS6 applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Will this fit Audi C8 RS7?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. The supplied fitment information lists 2019+ Audi C8 RS7 applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Is this compatible with Mild Hybrid quattro models?\u003c\/strong\u003e\u003cbr\u003e\nA: The supplied product information specifically lists Mild Hybrid quattro applications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Does this include catalytic converters?\u003c\/strong\u003e\u003cbr\u003e\nA: No. This is a catless downpipe configuration and does not include catalytic converters.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Does this increase horsepower?\u003c\/strong\u003e\u003cbr\u003e\nA: No specific horsepower or torque increase is stated in the supplied product information, so no specific performance gain is claimed.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Will this make the exhaust louder?\u003c\/strong\u003e\u003cbr\u003e\nA: A catless downpipe can make turbocharger and exhaust sounds more noticeable compared with the factory catalytic downpipe configuration.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Is ECU tuning required?\u003c\/strong\u003e\u003cbr\u003e\nA: ECU tuning requirements are not specified in the supplied product information and may vary depending on vehicle configuration and modifications.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Can this be used on public roads?\u003c\/strong\u003e\u003cbr\u003e\nA: Catless exhaust components may not comply with emissions regulations in all regions. Please check local regulations before installation.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: What should I verify before purchase?\u003c\/strong\u003e\u003cbr\u003e\nA: Please verify your Audi model, C8 chassis code, EA825 engine configuration, Mild Hybrid system, turbo outlet connection, oxygen sensor location, exhaust routing, and mounting points.\n\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cstrong\u003eQ: Is professional installation recommended?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes. Professional installation is recommended to ensure correct alignment, sealing, sensor installation, and exhaust connection.\n\u003c\/p\u003e\n\n\n\u003ch5\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eWarranty \u0026amp; Shipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h5\u003e\n\n\u003cp\u003e\nEvery KYOSTAR exhaust component is inspected before shipment to ensure product condition, pipe construction, flange quality, connection points, mounting provisions, and packaging integrity before delivery.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAll components are securely packaged to help reduce the risk of transportation damage. Please inspect the package and downpipe components after delivery and contact our support team if you notice missing components, shipping damage, or product-related concerns.\n\u003c\/p\u003e\n\n\u003cp\u003e\nPlease contact KYOSTAR customer support if you need assistance with vehicle fitment, installation questions, missing components, or after-sales service.\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"KYOSTAR PERFORMANCE","offers":[{"title":"Ships from U.S. Warehouse","offer_id":54581331755281,"sku":"KD5S029WG-1","price":708.99,"currency_code":"USD","in_stock":false},{"title":"Factory Direct Shipping","offer_id":54581331788049,"sku":"KD5S029WG-2","price":748.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/7361\/5889\/files\/KD5S029WG_1.jpg?v=1788775326","url":"https:\/\/www.kyostars.com\/products\/kyostar-catless-downpipe-for-2019-audi-c8-rs6-rs7-ea825-4-0t-v8-mild-hybrid","provider":"KYOSTAR PERFORMANCE","version":"1.0","type":"link"}