{"product_id":"karbonius-carbon-fibre-airbox-oem-style-bmw-e46-m3-z4m","title":"Karbonius Carbon Fibre Airbox for BMW E46 M3 \u0026 Z4M (S54) - OEM-Style CSL Sound, MAF-Compatible, No Remap, Plug \u0026 Play - 2x2 Gloss Prepreg Carbon, Autoclave Cured","description":"\u003cdiv\u003e\n  \u003ch2\u003eKarbonius Carbon Fibre Airbox, OEM Style, CSL Sound, MAF Compatible, No Remap - BMW E46 M3 and BMW Z4M S54\u003c\/h2\u003e\n\n  \u003cp\u003eTransform your S54 with the Karbonius carbon fibre airbox for BMW E46 M3 and BMW Z4M. This OEM style carbon intake delivers the iconic CSL airbox sound while retaining full everyday drivability. It is MAF compatible, uses the stock intake elbow, and requires no remap. If you want the addictive CSL induction noise without the complexity of a full CSL conversion, this is the carbon fibre air box to buy.\u003c\/p\u003e\n\n  \u003cp\u003eBuilt 100 percent from prepreg carbon fibre and autoclave cured in Spain, the finish, fit and durability are superb. Expect a deeper, sharper induction roar that unlocks the signature S54 character. Testing indicates approximately +12 dB over the plastic OEM airbox. A recent dyno comparison showed around +4 hp versus stock which is within normal margin of error, so there is no significant power increase and no power loss. The aim here is sound, response and OEM plus aesthetics, and it delivers.\u003c\/p\u003e\n\n  \u003ch3\u003eKey features and benefits\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eCSL sound for E46 M3 and Z4M with OEM style fitment and smooth drivability\u003c\/li\u003e\n    \u003cli\u003eMAF compatible, no remap required, plug and play with the stock elbow and MAF sensor\u003c\/li\u003e\n    \u003cli\u003e2x2 gloss twill prepreg carbon fibre, autoclave cured, premium finish made in the EU\u003c\/li\u003e\n    \u003cli\u003eClean engine bay look, OEM plus appearance, lightweight construction\u003c\/li\u003e\n    \u003cli\u003eIdeal CSL airbox alternative for S54 engines focused on induction noise and response\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eConstruction and finish\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e100 percent prepreg carbon fibre, autoclave cured in Spain\u003c\/li\u003e\n    \u003cli\u003e2x2 gloss weave for a high quality OEM plus engine bay\u003c\/li\u003e\n    \u003cli\u003eDesigned for durability, heat resistance and precise fitment\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFitment\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW M3 E46, S54\u003c\/li\u003e\n    \u003cli\u003eBMW Z4 M, S54\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eNo remap needed, uses the stock MAF and intake elbow\u003c\/li\u003e\n    \u003cli\u003eRequires CSL crankcase breather hose, RealOEM ref: 11157833649\u003c\/li\u003e\n    \u003cli\u003eFor SMG cars, requires genuine BMW CSL SMG Expansion Tank, RealOEM ref: 2153228254949\u003c\/li\u003e\n    \u003cli\u003eAdditional hoses and clamps may be required depending on vehicle setup\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTried, tested and loved by our customers\u003c\/h3\u003e\n  \u003cp\u003eWe have supplied and fitted this Karbonius carbon intake to many E46 M3 and Z4M customers. Feedback is consistently excellent. The intake sound is addictive, the fitment is clean and the engine bay transformation is immediate. If you want the best OEM style carbon fibre airbox for your S54 that keeps the MAF and does not need mapping, this is it.\u003c\/p\u003e\n\n  \u003ch3\u003eProfessional fitting\u003c\/h3\u003e\n  \u003cp\u003eProfessional fitting available at Nforcd, Warwickshire. Request a quote at \u003ca href=\"mailto:Sales@nforcd.com\"\u003eSales@nforcd.com\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eSearch terms\u003c\/h3\u003e\n  \u003cp\u003eKarbonius carbon fibre airbox E46 M3, Karbonius airbox Z4M, BMW E46 M3 carbon intake, BMW Z4M carbon intake, S54 carbon fibre intake, CSL sound airbox, OEM style CSL airbox sound, MAF compatible carbon airbox, no remap carbon intake, 2x2 gloss prepreg carbon, autoclave cured airbox, E46 M3 CSL sound intake, Z4M CSL style airbox, S54 induction kit, BMW M3 E46 air intake upgrade, UK BMW performance parts, UK carbon fibre airbox, carbon fiber airbox E46, carbon fibre air box S54.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e 2x2 gloss only\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Karbonius","offers":[{"title":"Default Title","offer_id":53961120612737,"sku":"E46AD09","price":1499.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/9465\/6700\/files\/karbonius-carbon-fibre-airbox-oem-style-bmw-e46-m3-z4m-632283.jpg?v=1735826227","url":"https:\/\/www.nforcd.com\/products\/karbonius-carbon-fibre-airbox-oem-style-bmw-e46-m3-z4m","provider":"Nforcd","version":"1.0","type":"link"}