{"product_id":"karbonius-bmw-e46-airbox-oem-style-2x2-gloss-finish","title":"Karbonius BMW E46 M3 (S54) Carbon Airbox - OEM Style","description":"\u003cp\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAirbox\u003c\/li\u003e\n\u003cli\u003eCNC machine-made items of anodized aluminum\u003c\/li\u003e\n\u003cli\u003eStainless-steel screws\u003c\/li\u003e\n\u003cli\u003eCertificate of authenticity \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe M3 CSL Carbon Airbox is one of the most demanded improvements among E46 M3 enthusiasts. This is due to the performance gain of course, but even more enjoyable is the intake sound it brings to car. Unfortunately, upgrading to the CSL airbox is both labor intensive and time-consuming; requiring a number of additional parts, wiring, and software. As such, it's a rather expensive modification.\u003c\/p\u003e\n\u003cp\u003eFor those who are looking for a similar sound to the CSL carbon airbox but are less concerned about a performance gain, Karbonius has developed an OEM Style S54 carbon airbox. It is a simplified version of the CSL airbox and, apart from the louder intake sound\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e(+12 dB compared to plastic OEM airbox)\u003c\/strong\u003e, provides an awesome appearance and easy installation using standard intake elbow and MAF. No need to install any additional hardware or a remap.\u003c\/p\u003e\n\u003cp\u003eRegarding a power increase, Karbonius observed\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e+4HP compared to the OEM airbox in a recent dyno test.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNot significant enough of a gain with a 2% margin of error. Therefore, pending any additional testing, they claim no significant power increase, but no HP loss either.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor E46 M3 SMG models, a genuine CSL SMG reservoir is needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimilar sound to CSL carbon airbox\u003c\/li\u003e\n\u003cli\u003eSaves roughly 8lbs compared to OEM plastic airbox\u003c\/li\u003e\n\u003cli\u003eNo remap software required\u003c\/li\u003e\n\u003cli\u003e100% Carbon Prepreg\u003c\/li\u003e\n\u003cli\u003eCured in autoclave\u003c\/li\u003e\n\u003cli\u003eHigh gloss UV protection varnish\u003c\/li\u003e\n\u003cli\u003e2 year guarantee\u003c\/li\u003e\n\u003cli\u003e2005-2006 M3 models and Z4 require pre-2005 throttle body boots and modified crankcase breather hose (see installed photo; Eventuri intake not included)\u003c\/li\u003e\n\u003cli\u003eE46 M3 SMG package includes OEM M3 CSL SMG reservoir and bracket; OE mounting location is drivers' side strut tower\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Karbonius","offers":[{"title":"Default Title","offer_id":48935910441153,"sku":"E46AD09-CF-2","price":1529.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/files\/KARB-OEM-1_1024x1024_15c3da2c-2a65-4b41-a766-fa2a9f990d80.jpg?v=1738448316","url":"https:\/\/www.urotuning.com\/products\/karbonius-bmw-e46-airbox-oem-style-2x2-gloss-finish","provider":"UroTuning","version":"1.0","type":"link"}