{"product_id":"k-n-replacement-air-filter-su-4000","title":"K\u0026N Replacement Air Filter SU-4000","description":"\u003cp\u003eA premium high-flow replacement air filter with pleated cotton media and reusable construction. Engineered for drivers seeking improved engine breathing and multi-cycle durability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePleated cotton-blend media reduces inlet restriction compared to OEM paper filters\u003c\/li\u003e\n\u003cli\u003eFully reusable and cleanable—maintains performance across hundreds of service cycles\u003c\/li\u003e\n\u003cli\u003eDirect OEM air box fit with integrated sealing edges to prevent bypass air leakage\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":56628596408700,"sku":"SU-4000","price":67.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/9208\/4867\/files\/SU-4000.jpg?v=1776074997","url":"https:\/\/fdracing.co.uk\/products\/k-n-replacement-air-filter-su-4000","provider":"FD Racing","version":"1.0","type":"link"}