{"product_id":"f85-dp-redstar-bmw-f85-x5m-x6m-downpipes","title":"Redstar BMW F85 X5M\/X6M Downpipes","description":"\u003cp class=\"redstar-intro\"\u003eUnleash the potential of your BMW X5M F85 and X6M F86 with Redstar performance exhaust downpipes engineered specifically for the S63B44 4.4 V8 Bi-Turbo. Developed for 2015-2019 models, this system replaces the factory downpipe section with a precision-built, bolt-on upgrade designed to integrate with OEM mounting points.\u003c\/p\u003e\n\u003cp class=\"redstar-intro\"\u003eExpect faster spool, sharper throttle response and a noticeable uplift in power, alongside a richer, more engaging exhaust tone. Choose from high-performance catalytic options including HJS HD 200cpsi and GESI GEN2 400cpsi converters rated to support up to 1000hp, both aimed at improving flow over the stock setup. Redstar’s OEM-style heat shielding with a ceramic inner liner draws on motorsport practice to reduce radiant heat by up to 80%, helping to curb under-bonnet temperatures and support turbo longevity.\u003c\/p\u003e\n\u003cp class=\"redstar-intro\"\u003eBuilt for durability and accuracy, every assembly is 100% TIG welded and back purged from 2.0mm wall 304 stainless steel, using OEM-spec flanges with factory-style brackets and mounts. The result is a true bolt-on Redstar downpipe solution for the BMW X5M F85 and BMW X6M F86 that blends engineering focus with real-world performance gains.\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\u003eHJS HD 200cpsi Catalytic Converters:\u003c\/strong\u003e Engineered in Germany and trusted worldwide, the HJS 200cpsi ultra high-performance cats are rated for over 1000hp. Renowned for exceptional flow, durability, and consistent quality, these converters set the benchmark for high-output applications. Ideal for drivers demanding maximum performance without compromise.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGESI GEN2 400cpsi Catalytic Converters:\u003c\/strong\u003e The latest GEN2 series from GESI is rated to support up to 1000hp while offering smoother exhaust flow and improved efficiency compared with factory units. Featuring advanced emissions technology for optimal catalyst function at high flow rates. A strong choice for those seeking significant performance gains with refined operation.\u003c\/li\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\u003eNoticeable increase in power and torque\u003c\/li\u003e\n  \u003cli\u003eQuicker turbo spool and sharper throttle response\u003c\/li\u003e\n  \u003cli\u003eHelps extend turbocharger service life\u003c\/li\u003e\n  \u003cli\u003eLower under-bonnet temperatures for improved thermal control\u003c\/li\u003e\n  \u003cli\u003eMore engaging, refined exhaust tone\u003c\/li\u003e\n  \u003cli\u003eTrue bolt-on installation to factory mounting points\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\u003eFabricated from 2.0mm wall 304 stainless steel\u003c\/li\u003e\n  \u003cli\u003e100% TIG welded and back purged for precision and strength\u003c\/li\u003e\n  \u003cli\u003eOEM-spec flanges for secure, leak-free sealing\u003c\/li\u003e\n  \u003cli\u003eFactory-style brackets and mounts for OE-level fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 class=\"redstar-section-title\"\u003eNotes\u003c\/h2\u003e\n\u003cul class=\"redstar-notes\"\u003e\n  \u003cli\u003eEuro 6 compliant when optioned with HJS HD 200cpsi catalytic converters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eManufacturer fitment\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n  \u003cli\u003e2015-2019 BMW X5M F85 S63B44 4.4 V8 Bi-Turbo\u003c\/li\u003e\n  \u003cli\u003e2015-2019 BMW X6M F86 S63B44 4.4 V8 Bi-Turbo\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBMW X5 M (F85) SUV X5 M 2015-2018\u003cbr\u003eBMW X6 M (F86) SUV X6 M 2015-2019\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProfessional fitting is recommended.\u003c\/em\u003e\u003c\/p\u003e","brand":"Redstar Exhaust","offers":[{"title":"GESI GEN2 UHO+ 400cpsi 4.5\" \/ Heat Shielded","offer_id":46873083281487,"sku":"F85-DP45-HS","price":7739.0,"currency_code":"AUD","in_stock":true},{"title":"GESI GEN2 UHO+ 400cpsi 4.5\" \/ No Heat Shielding","offer_id":46873083314255,"sku":"F85-DP45","price":6899.0,"currency_code":"AUD","in_stock":true},{"title":"HJS HD 200cpsi 121mm \/ Heat Shielded","offer_id":46873083347023,"sku":"F85-DP121-HS","price":7979.0,"currency_code":"AUD","in_stock":true},{"title":"HJS HD 200cpsi 130mm \/ Heat Shielded","offer_id":46873083379791,"sku":"F85-DP130-HS","price":9459.0,"currency_code":"AUD","in_stock":true},{"title":"HJS HD 200cpsi 121mm \/ No Heat Shielding","offer_id":46873083412559,"sku":"F85-DP121","price":7129.0,"currency_code":"AUD","in_stock":true},{"title":"GESI GEN2 UHO+ 400cpsi 5\" \/ Heat Shielded","offer_id":46873083445327,"sku":"F85-DP50-HS","price":8319.0,"currency_code":"AUD","in_stock":true},{"title":"HJS HD 200cpsi 130mm \/ No Heat Shielding","offer_id":46873083478095,"sku":"F85-DP130","price":8609.0,"currency_code":"AUD","in_stock":true},{"title":"GESI GEN2 UHO+ 400cpsi 5\" \/ No Heat Shielding","offer_id":46873083510863,"sku":"F85-DP50","price":7469.0,"currency_code":"AUD","in_stock":true},{"title":"Competition (catless) \/ Heat Shielded","offer_id":46873083543631,"sku":"F85-DPCL-HS","price":4089.0,"currency_code":"AUD","in_stock":true},{"title":"Competition (catless) \/ No Heat Shielding","offer_id":46873083576399,"sku":"F85-DPCL","price":3239.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/4383\/8543\/files\/F85-DP.jpg?v=1790044458","url":"https:\/\/heasmansaus.myshopify.com\/products\/f85-dp-redstar-bmw-f85-x5m-x6m-downpipes","provider":"heasmansaus","version":"1.0","type":"link"}