{"product_id":"k-n-bm-1821-replacement-air-filter","title":"K\u0026N BM-1821 BMW R18 1802cc Air Filter (2020-2021) - High-Flow Washable Reusable OEM Replacement Drop-In","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eK\u0026amp;N BM-1821 Intake Filter Insert for BMW R 18 1,802 cc 2020 to 2021\u003c\/h2\u003e\n  \n  \u003cp\u003e\n    Unlock smoother breathing and crisp throttle feel on your BMW cruiser with the K\u0026amp;N BM-1821 intake filter element. This serviceable, cotton-gauze filter is a factory-spec replacement for the BMW R 18 1,802 cc models from 2020 to 2021, sliding straight into the stock air box for an effortless upgrade. Reusable, washable and built to last, it is a smart performance-enhancing choice for riders who want quality, longevity and value.\n  \u003c\/p\u003e\n  \n  \u003cp\u003e\n    At MJ Modifications we run K\u0026amp;N filters on our own builds and customer bikes. The BM-1821 has proven to be a favourite thanks to its robust construction, easy maintenance and noticeable improvement in intake efficiency. UK riders looking for a long-life motorcycle air cleaner for everyday use and touring will find this filter delivers exactly what they want.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eWhy this filter stands out\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDirect fit for the factory air box on BMW R 18 1,802 cc 2020 to 2021 - no cutting, no fuss\u003c\/li\u003e\n    \u003cli\u003eHigh-flow cotton media that helps the big boxer breathe more freely\u003c\/li\u003e\n    \u003cli\u003eWashable and reusable element for long-term savings and reduced waste\u003c\/li\u003e\n    \u003cli\u003eDurable construction designed for repeated cleaning and re-oiling\u003c\/li\u003e\n    \u003cli\u003eIdeal upgrade for commuting, weekend rides and long-distance touring\u003c\/li\u003e\n    \u003cli\u003ePopular choice across the UK for riders searching for BMW R 18 intake upgrades\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003ePerfect for these searches\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW R 18 intake filter, BMW R18 air cleaner element, washable motorcycle intake, reusable cotton gauze filter, performance filter insert UK, BMW 1802 cc filter element, K and N BM1821, R 18 airbox filter, BMW R18 upgrade filter, lifetime motorcycle filter.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW R 18 1,802 cc - model years 2020 and 2021.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\n    BM-1821\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eFitting and support\u003c\/h3\u003e\n  \u003cp\u003e\n    This is a straightforward drop-in element for the stock intake housing. If you prefer professional installation, book with MJ Modifications in Warwickshire. Request a fitting quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eNeed to confirm fitment\u003c\/h3\u003e\n  \u003cp\u003e\n    We are happy to double-check compatibility. Send your UK registration or the last 7 digits of your VIN to \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e for fast assistance.\n  \u003c\/p\u003e\n  \n  \u003cp\u003e\n    Upgrade your BMW R 18 with a premium, serviceable intake filter that is built for miles of reliable performance. The K\u0026amp;N BM-1821 is the go-to reusable filter element for riders who want dependable quality and easy maintenance.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":56008666382722,"sku":null,"price":87.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/BM-1821_1.webp?v=1764090412","url":"https:\/\/mjmodifications.co.uk\/products\/k-n-bm-1821-replacement-air-filter","provider":"MJ Modifications","version":"1.0","type":"link"}