{"product_id":"karbonius-e30-3-series-s54-csl-carbon-airbox","title":"Karbonius E30 3-Series S54 CSL Carbon Airbox","description":"\u003cp\u003eThe Karbonius E30 3-Series S54 CSL Carbon Airbox brings the legendary induction experience of the E46 M3 CSL to the E30 chassis running an S54 engine swap. The E46 M3 CSL airbox is widely regarded as one of the finest — and most sonically rewarding — intake systems ever fitted to a road car, and this Karbonius adaptation makes that same experience accessible to the growing community of E30 S54 builders.\u003c\/p\u003e\n\u003cp\u003eBecause the standard E46 S54 CSL airbox does not fit directly in the E30 chassis, Karbonius has developed a modified version optimized for E30 fitment. The airbox comes without the forward inner air canalization\/duct found on the E46 M3 CSL due to chassis constraints. Even with the customized fitment, Karbonius recommends installing a smaller-diameter brake booster to prevent contact — for example, an E21 320i or E30 iX brake booster.\u003c\/p\u003e\n\u003cp\u003eManufactured from 100% prepreg carbon fiber and autoclave-cured in Spain under ISO 9001 Management Quality System standards, the airbox delivers an appreciable gain in power alongside the unmistakable CSL induction sound. CNC-machined aluminum components and stainless-steel hardware complete the kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCarbon fiber airbox (S54 CSL-style, modified for E30 chassis fitment)\u003c\/li\u003e\n\u003cli\u003eM Power decal\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\u003eAvailable in 2x2 twill or 1x1 plain weave with a gloss or matte finish\u003c\/li\u003e\n\u003cli\u003eAppreciable gain in power\u003c\/li\u003e\n\u003cli\u003eIconic CSL induction sound\u003c\/li\u003e\n\u003cli\u003eAerodynamic design\u003c\/li\u003e\n\u003cli\u003eCNC machine-made aluminum components\u003c\/li\u003e\n\u003cli\u003eStainless-steel hardware\u003c\/li\u003e\n\u003cli\u003eAluminum thread inserts\u003c\/li\u003e\n\u003cli\u003eReinforced at all key mounting points\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\u003eImportant Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for E30 chassis with S54 engine swap — not compatible with S14-engined E30 M3\u003c\/li\u003e\n\u003cli\u003eAirbox does not include the front inner canalization\/air duct due to E30 chassis constraints\u003c\/li\u003e\n\u003cli\u003eKarbonius recommends installing a smaller-diameter brake booster (e.g., E21 320i or E30 iX) to prevent contact with the airbox\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 E30 3-Series Carbon Hood\u003c\/li\u003e\n\u003cli\u003eKarbonius E30 M3 Sport Evo 3 Undertray\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Karbonius","offers":[{"title":"2x2 Twill Weave \/ Gloss","offer_id":47874866020508,"sku":"E30AD01-CF-2","price":2284.0,"currency_code":"USD","in_stock":true},{"title":"2x2 Twill Weave \/ Matte","offer_id":47874866053276,"sku":"E30AD01-CFM-2","price":2349.0,"currency_code":"USD","in_stock":true},{"title":"1x1 Plain Weave \/ Gloss","offer_id":47874866086044,"sku":"E30AD01-CF-1","price":2349.0,"currency_code":"USD","in_stock":true},{"title":"1x1 Plain Weave \/ Matte","offer_id":47874866118812,"sku":"E30AD01-CFM-1","price":2419.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/bmw-e30-karbonius-s54-csl-carbon-airbox-4.jpg?v=1791774703","url":"https:\/\/daroracing.com\/products\/karbonius-e30-3-series-s54-csl-carbon-airbox","provider":"Daro Racing","version":"1.0","type":"link"}