{"product_id":"k-n-engineering-performance-airbox-for-bmw-2-3-and-4-series-n20-engines-part-no-knn57s-2001","title":"K\u0026N Engineering Performance Airbox for BMW 2, 3, and 4 Series N20 Engines (Part No. knn57S-2001)","description":"\u003cp\u003e\u003c\/p\u003e\u003cp\u003eUpgrade your BMW's engine with the K\u0026amp;N Engineering Performance Airbox designed specifically for 2013-2016 BMW 2, 3, and 4 Series equipped with N20 engines. This high-performance air intake system replaces the factory air filter and housing, significantly reducing airflow restrictions and smoothing incoming air flow. The result is increased airflow into the engine, leading to improved horsepower, torque, and acceleration across the entire RPM range. Its fully enclosed, injection-molded design connects seamlessly to the factory intake hose, ensuring a secure fit and reliable operation. The removable lid allows quick and easy access for filter cleaning and maintenance, making it a practical upgrade for daily drivers and performance enthusiasts alike.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eReduces airflow restriction to improve engine breathing.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSmoother and straighter airflow enhances power delivery.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully enclosed, injection-molded air box for durability and a secure fit.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRemovable lid provides easy access for cleaning and filter maintenance.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned as a direct replacement for factory air intake components.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBacked by K\u0026amp;N's No-Hassle Lifetime Limited Warranty.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with select BMW 2, 3, and 4 Series models with N20 engines.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed from durable materials built to last for the life of your vehicle.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngineered to meet or exceed industry standards for performance.\u003c\/li\u003e\u003c\/ul\u003e\n\n\u003cp\u003eFitment:\n\u003cbr\u003e2013 BMW 320i Base\n\u003cbr\u003e2013 BMW 328i Base\n\u003cbr\u003e2014 BMW 228i Base\n\u003cbr\u003e2014 BMW 320i Base\n\u003cbr\u003e2014 BMW 328i Base\n\u003cbr\u003e2014 BMW 428i Base\n\u003cbr\u003e2015 BMW 228i Base\n\u003cbr\u003e2015 BMW 320i Base\n\u003cbr\u003e2015 BMW 328i Base\n\u003cbr\u003e2015 BMW 428i Base\n\u003cbr\u003e2016 BMW 228i Base\n\u003cbr\u003e2016 BMW 428i Base\u003c\/p\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":45762276688071,"sku":"knn57S-2001","price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/45f50cad1c77a7775e8bcd9fc03acead.jpg?v=1762734675","url":"https:\/\/mainstreeteshop.com\/products\/k-n-engineering-performance-airbox-for-bmw-2-3-and-4-series-n20-engines-part-no-knn57s-2001","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}