{"product_id":"karbonius-e9x-m3-s65-carbon-inlet-plenum-and-intake-system-roundel-style","title":"Karbonius E9X M3 (S65) Carbon Inlet Plenum and Intake System - Roundel Style","description":"\u003cp\u003eThe Karbonius E9X M3 (S65) Carbon Inlet Plenum and Intake System — Roundel Style is the most complete carbon intake solution available for BMW's naturally aspirated V8, now featuring a BMW Roundel badge in place of the \/\/\/M V8 plaque. Where BMW never developed a carbon plenum for the S65 as they did for the S54 CSL, Karbonius engineered a full carbon fiber intake system — plenum, elbow, airbox cover, and air filter — to improve engine efficiency, unlock a dramatic induction sound, and transform the engine bay aesthetic.\u003c\/p\u003e\n\u003cp\u003eDesigned by Karbonius' in-house engineering team using modern 2D and 3D flow analysis, every component has been redesigned to optimize airflow into the engine while minimizing turbulence inside the airbox — delivering measurable power gains alongside the visual and auditory upgrades. The Roundel Style version is performance-identical to the \/\/\/M V8 version; the distinction is purely aesthetic — a BMW Roundel badge in place of the \/\/\/M V8 plaque.\u003c\/p\u003e\n\u003cp\u003eEach piece is manufactured from 100% prepreg carbon fiber and autoclave-cured in Spain under ISO 9001 quality standards, combining motorsport-grade construction with authenticity and long-term durability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarbon inlet plenum\u003c\/li\u003e\n\u003cli\u003eCarbon elbow\u003c\/li\u003e\n\u003cli\u003eCarbon airbox cover\u003c\/li\u003e\n\u003cli\u003eBMC high-flow air filter (BMC FB536\/08; verify compatibility with your filter cartridge)\u003c\/li\u003e\n\u003cli\u003eNumbered certificate of authenticity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKarbonius intake (airbox + elbow): 3,635 g vs. OEM 6,677 g — approximately 3 kg weight savings\u003c\/li\u003e\n\u003cli\u003ePower gains: +9 HP with airbox alone; +32 HP with Karbonius airbox + Alpha-N mapping\u003c\/li\u003e\n\u003cli\u003eOptimized internal geometry for improved airflow and reduced turbulence\u003c\/li\u003e\n\u003cli\u003eDramatic S65 V8 induction sound\u003c\/li\u003e\n\u003cli\u003eBMW Roundel badge (as opposed to \/\/\/M V8 plaque on the standard version)\u003c\/li\u003e\n\u003cli\u003e100% prepreg carbon fiber construction\u003c\/li\u003e\n\u003cli\u003eAutoclave-cured for strength and finish quality\u003c\/li\u003e\n\u003cli\u003eIndividually numbered for authenticity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAlternative Style\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\nKarbonius E9X M3 (S65) Carbon Inlet Plenum and Intake System (identical performance; \/\/\/M V8 plaque in place of Roundel badge)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelated Products\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKarbonius E9X M3 (S65) Carbon Plenum Heat Shield Kit\u003c\/li\u003e\n\u003cli\u003eKarbonius E9X M3 Carbon Front Intake Ducts\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Karbonius","offers":[{"title":"2x2 Twill Weave \/ Gloss","offer_id":47874848260252,"sku":"E92AD01-CF-2","price":4125.0,"currency_code":"USD","in_stock":true},{"title":"2x2 Twill Weave \/ Matte","offer_id":47874848293020,"sku":"E92AD01-CFM-2","price":4364.0,"currency_code":"USD","in_stock":true},{"title":"1x1 Plain Weave \/ Gloss","offer_id":47874848325788,"sku":"E92AD01-CF-1","price":4284.0,"currency_code":"USD","in_stock":true},{"title":"1x1 Plain Weave \/ Matte","offer_id":47874848358556,"sku":"E92AD01-CFM-1","price":4389.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/E9X-Plenum-Roundel-1.jpg?v=1791774677","url":"https:\/\/daroracing.com\/products\/karbonius-e9x-m3-s65-carbon-inlet-plenum-and-intake-system-roundel-style","provider":"Daro Racing","version":"1.0","type":"link"}