{"product_id":"k-n-custom-air-filter-e-3988","title":"K\u0026N Custom Air Filter E-3988 – Performance Induction System","description":"\u003cp\u003eA performance-optimised K\u0026amp;N air filter engineered for custom induction systems and modified engine builds. Washable media maintains efficiency over extended service life while reducing intake restriction.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCustom-optimised cotton-gauze media for performance induction architectures\u003c\/li\u003e\n\u003cli\u003eWashable and reusable design with up to 100,000 miles service life between cleaning cycles\u003c\/li\u003e\n\u003cli\u003eReduced intake restriction engineered to complement turbo and supercharger inlet configurations\u003c\/li\u003e\n\u003cli\u003eApplication verification required – confirm your intake specification with FD Racing technical team\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":56622044873084,"sku":"E-3988","price":83.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/9208\/4867\/files\/E-3988.jpg?v=1775907908","url":"https:\/\/fdracing.co.uk\/products\/k-n-custom-air-filter-e-3988","provider":"FD Racing","version":"1.0","type":"link"}