{"product_id":"f90-scdp-redstar-bmw-f90-m5-m8-secondary-downpipes","title":"Redstar BMW F90 M5\/M8 Secondary Downpipes","description":"\u003cp class=\"redstar-intro\"\u003eTransform your BMW M5 F90 and BMW M8 F91 F92 F93 equipped with the 4.4 L S63 twin-turbocharged V8 with Redstar performance exhaust secondary cat delete. This lower secondary slip-on style downpipe only replaces the lower secondary pipes by removing the secondary catalytic converters for a cleaner, freer-flowing path. It is completely bolt-on and is designed not to trigger a check engine light.\u003c\/p\u003e\n\u003cp class=\"redstar-intro\"\u003eFlow-optimised geometry improves exhaust evacuation for significant power gains, faster turbo spool and sharper throttle response, while adding a richer, more engaging exhaust tone. With OEM-style heat shielding option featuring a ceramic inner liner, radiant heat from the exhaust can be reduced by up to 80%, helping to control under-bonnet temperatures and supporting turbocharger longevity.\u003c\/p\u003e\n\u003cp class=\"redstar-intro\"\u003eEngineered for precision fitment, Redstar utilises 2.0mm wall 304 stainless steel, 100% TIG welded and back purged construction, OEM-spec V-band flanges and factory-style brackets. Developed to interface seamlessly with OEM mounting points, this lower secondary solution delivers the durability, accuracy and integration expected from a Redstar performance exhaust downpipe upgrade for BMW M5 F90 and BMW M8 platforms.\u003c\/p\u003e\n\n\u003ch2 class=\"redstar-section-title\"\u003eAvailable Options\u003c\/h2\u003e\n\u003cul class=\"redstar-options\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM-Style Heat Shielding:\u003c\/strong\u003e Redstar's signature thermal management system reduces radiant exhaust heat by up to 80%. Developed with motorsport-inspired materials and construction, it uses a multi-layer design of ceramic insulation and embossed stainless steel foil. Unlike wraps or coatings that degrade quickly, Redstar shielding delivers long-term durability and consistent protection for engine bay components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"redstar-section-title\"\u003eKey Performance Benefits\u003c\/h2\u003e\n\u003cul class=\"redstar-benefits\"\u003e\n  \u003cli\u003eSignificant power gain\u003c\/li\u003e\n  \u003cli\u003eFaster spool up and better throttle response\u003c\/li\u003e\n  \u003cli\u003eReduces under-bonnet temperature\u003c\/li\u003e\n  \u003cli\u003eAdds a very nice tone to the exhaust\u003c\/li\u003e\n  \u003cli\u003e100% bolt-on installation\u003c\/li\u003e\n  \u003cli\u003eWill not create a check engine light\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"redstar-section-title\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul class=\"redstar-specifications\"\u003e\n  \u003cli\u003eHighest quality 2.0mm wall 304 stainless steel\u003c\/li\u003e\n  \u003cli\u003e100% TIG welded and back purged\u003c\/li\u003e\n  \u003cli\u003eOEM-spec V-band flanges\u003c\/li\u003e\n  \u003cli\u003eAll brackets and mounts as on OEM unit\u003c\/li\u003e\n  \u003cli\u003eLower secondary slip-on style downpipe only - secondary cat delete\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer fitment\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n  \u003cli\u003e2017-2023 BMW M5 F90 4.4 L S63 twin-turbocharged V8\u003c\/li\u003e\n  \u003cli\u003e2018-2023 BMW M5 Competition F90 4.4 L S63 twin-turbocharged V8\u003c\/li\u003e\n  \u003cli\u003e2019-2023 BMW M8 F91\u003c\/li\u003e\n  \u003cli\u003e2019-2023 BMW M8 F92\u003c\/li\u003e\n  \u003cli\u003e2019-2023 BMW M8 F93\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBMW M5 (F90) Sedan CS 2021-2021\u003cbr\u003eBMW M5 (F90) Sedan Competition 2018-2023\u003cbr\u003eBMW M5 (F90) Sedan M5 2017-2023\u003cbr\u003eBMW M8 (F91) Convertible Competition 2019-current\u003cbr\u003eBMW M8 (F91) Convertible M8 2019-current\u003cbr\u003eBMW M8 (F92) Coupe Competition 2019-current\u003cbr\u003eBMW M8 (F92) Coupe M8 2019-current\u003cbr\u003eBMW M8 (F93) Sportback Competition 2019-current\u003cbr\u003eBMW M8 (F93) Sportback M8 2019-current\u003cbr\u003eBMW X5 M (F95) SUV X5 M 2020-2023\u003cbr\u003eBMW X6 M (F96) SUV X6 M 2020-2023\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFor EU vehicles with OPF, please provide the VIN to confirm the correct configuration.\u003c\/em\u003e\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProfessional fitting is recommended.\u003c\/em\u003e\u003c\/p\u003e","brand":"Redstar Exhaust","offers":[{"title":"Non-Facelift \/ No Heat Shielding","offer_id":46873085214799,"sku":"F90-SCD","price":2819.0,"currency_code":"AUD","in_stock":true},{"title":"Non-Facelift \/ Heat Shielded","offer_id":46873085247567,"sku":"F90-SCD-HS","price":3389.0,"currency_code":"AUD","in_stock":true},{"title":"Facelift \/ No Heat Shielding","offer_id":46873085280335,"sku":"F90FL-SCD","price":2249.0,"currency_code":"AUD","in_stock":true},{"title":"Facelift \/ Heat Shielded","offer_id":46873085313103,"sku":"F90FL-SCD-HS","price":2669.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/4383\/8543\/files\/F90-SCDP.jpg?v=1790044460","url":"https:\/\/heasmansaus.myshopify.com\/products\/f90-scdp-redstar-bmw-f90-m5-m8-secondary-downpipes","provider":"heasmansaus","version":"1.0","type":"link"}