{"product_id":"k-n-performance-air-intake-system-57s-4521","title":"K\u0026N Performance Air Intake System 57S-4521","description":"\u003cp\u003eA high-performance air intake system delivering maximum airflow and throttle response through precision engineering. The reusable, washable filter eliminates ongoing replacement costs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-flow reusable air filter element—maintain every 40,000–60,000 miles\u003c\/li\u003e\n\u003cli\u003eAdvanced intake manifold geometry engineered to maximise air velocity\u003c\/li\u003e\n\u003cli\u003eDirect OEM-spec installation—compatible with factory engine bay mounting\u003c\/li\u003e\n\u003cli\u003eModel 57S-4521 specification optimised for target vehicle application fitment\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":56615211139452,"sku":"57S-4521","price":565.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/9208\/4867\/files\/57S-4521.jpg?v=1775813989","url":"https:\/\/fdracing.co.uk\/products\/k-n-performance-air-intake-system-57s-4521","provider":"FD Racing","version":"1.0","type":"link"}