{"product_id":"k-n-universal-air-filter-carbon-fiber-top-rp-4600","title":"K\u0026N Universal Air Filter RP-4600 Carbon Fiber Top","description":"\u003cp\u003eLarge-capacity reusable air filter with carbon fiber top designed for high-displacement and forced-induction engines requiring sustained high airflow. Delivers consistent power gains across extended boost and rpm ranges.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOversized cotton gauze element optimised for large-displacement and turbocharged applications\u003c\/li\u003e\n\u003cli\u003eReusable and washable with no performance degradation across unlimited service cycles\u003c\/li\u003e\n\u003cli\u003eCarbon fiber top housing reduces weight whilst enhancing intake system appearance\u003c\/li\u003e\n\u003cli\u003e99.5% filtration efficiency at reduced intake restriction—critical for turbo spooling efficiency\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":56622462894460,"sku":"RP-4600","price":154.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/9208\/4867\/files\/RP-4600.jpg?v=1775910795","url":"https:\/\/fdracing.co.uk\/products\/k-n-universal-air-filter-carbon-fiber-top-rp-4600","provider":"FD Racing","version":"1.0","type":"link"}