{"product_id":"k-n-engineering-57s-2003-performance-airbox-for-bmw-335i-n54","title":"K\u0026N Engineering 57S-2003 Performance Airbox for BMW 335i N54","description":"The K\u0026amp;N Performance Airbox is designed to dramatically reduce air flow restriction as well as smooth and straighten air flow. Replacing the restrictive factory air filter and air box allows your engine to inhale more air than with the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. A fully enclosed injection molded air box connects to the factory air intake hose. The removable lid provides easy access to the filter when cleaning is required. This performance air box is relatively easy to install. The required tools are commonly available and it uses the previous air box space. These air box systems are built to last for the life of your vehicle and they're backed by K\u0026amp;N's No-Hassle Lifetime Limited Warranty. Some K\u0026amp;N 57S Series Performance Airboxes are compliant with the latest TUV emissions and sound regulations. Check the K\u0026amp;N catalog or website for vehicle applications and specific TUV status for each vehicle and air intake.\nK\u0026amp;N's easy-to-install performance air box replaces the restrictive factory air filter and air intake housing delivering a power gain. This power boosting air intake comes with K\u0026amp;N's No-Hassle Lifetime Limited Warranty.\nAssociated products: RU-5293 Universal Air Filter, 99-5000 Filter Care Service Kit Aerosol\n\u003cul\u003e\n  \u003cli\u003eK\u0026amp;N No-Hassle Lifetime Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade the intake performance of your BMW with the K\u0026amp;N Engineering 57S-2003 Performance Airbox. Designed for vehicles equipped with the N54 engine, this enclosed airbox replaces the restrictive factory air filter and intake housing to help improve airflow, throttle response, acceleration, and usable power across the engine’s RPM range. The injection-molded airbox connects to the factory air intake hose and is designed to use the original airbox location for a straightforward installation.\u003c\/p\u003e\n\n\u003cp\u003eThe removable lid provides convenient access to the air filter for inspection and cleaning. This K\u0026amp;N Performance Airbox is engineered for long-term service and is backed by K\u0026amp;N’s No-Hassle Lifetime Limited Warranty. The system is not CARB approved, and emissions compliance may vary by application; verify local requirements before installation. This product is intended for the following applications: 2007 BMW 335i, 2008 BMW 335i, 2009 BMW 335i, and 2009 BMW 335i xDrive. Associated products include the K\u0026amp;N RU-5293 Universal Air Filter and 99-5000 Filter Care Service Kit Aerosol.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e K\u0026amp;N Engineering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 57S-2003\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e BMW 335i N54 engine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Enclosed performance airbox\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Access:\u003c\/strong\u003e Removable airbox lid\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Uses the factory airbox location and intake hose\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e K\u0026amp;N No-Hassle Lifetime Limited Warranty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRegulatory Status:\u003c\/strong\u003e Not CARB approved; check applicable emissions requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003eOne K\u0026amp;N Engineering 57S-2003 Performance Airbox system. Filter care products and associated replacement filters are sold separately.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eReduced Airflow Restriction: Replaces the restrictive factory air filter and airbox to help the engine draw in more air.\u003c\/li\u003e\n\u003cli\u003eImproved Airflow Management: The enclosed injection-molded airbox helps smooth and straighten airflow into the engine.\u003c\/li\u003e\n\u003cli\u003eEnhanced Performance Response: Increased airflow can support improved acceleration, throttle response, and usable power throughout the RPM range.\u003c\/li\u003e\n\u003cli\u003eServiceable Design: The removable lid provides easy access for filter inspection and cleaning, while the system is backed by K\u0026amp;N’s No-Hassle Lifetime Limited Warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2007 BMW 335i Base\u003cbr\u003e\n2008 BMW 335i Base\u003cbr\u003e\n2009 BMW 335i Base\u003cbr\u003e\n2009 BMW 335i xDrive Base\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":67595442847996,"sku":"57S-2003","price":367.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/87dbe0022336afbaa2d0ee978dfaaf69.jpg?v=1790568688","url":"https:\/\/diycustoms.store\/products\/k-n-engineering-57s-2003-performance-airbox-for-bmw-335i-n54","provider":"diycustoms.store","version":"1.0","type":"link"}