{"product_id":"dna-performance-air-filter-royal-enfield-bullet-500-2009-21","title":"DNA Performance Air Filter | Royal Enfield Bullet 500 2009-21","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eImprove airflow, filtration and engine breathing on your \u003cstrong\u003eRoyal Enfield Bullet 500\u003c\/strong\u003e with the \u003cstrong\u003eDNA Performance Air Filter\u003c\/strong\u003e, engineered to deliver increased airflow while maintaining excellent filtration efficiency. Manufactured using DNA's advanced four-layer, oil-impregnated cotton gauze technology, this premium high-flow air filter provides an impressive \u003cstrong\u003e42.84% increase in airflow\u003c\/strong\u003e compared with the original Royal Enfield paper filter. With a measured airflow of 122.20 CFM and a filtration efficiency of 98–99%, it combines improved air intake performance with effective engine protection. Designed as a washable, reusable alternative to disposable paper filters, the DNA Performance Air Filter offers long-term value and straightforward installation for road, off-road and race applications.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-top:30px;\"\u003eCompatible Models\u003c\/h3\u003e\n\n\u003cp\u003e· Royal Enfield Bullet B5 500 (2011-2021)\u003cbr\u003e\n· Royal Enfield Bullet C5 \/ G5 500 (2009-2021)\u003cbr\u003e\n· Royal Enfield Bullet 499 (2014-2021)\u003c\/p\u003e\n\n\u003ch3 style=\"margin-top:30px;\"\u003eKey Features \u0026amp; Specifications\u003c\/h3\u003e\n\n\u003cdiv style=\"width:100%; overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%; border:none; border-collapse:collapse; border-spacing:0; table-layout:auto; text-align:left;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003eDNA High Performance Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003eHigh-Flow Performance Air Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eFilter Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003eOil-Impregnated Cotton Gauze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eFiltration Layers\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003e4 Layers of DNA Cotton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eFiltration Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003e98–99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eAirflow Increase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003e+42.84% Over Original Paper Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eDNA Filter Airflow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003e122.20 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eOriginal Filter Airflow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003e85.55 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eAirflow Test Conditions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003e1.5\" H₂O at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eOE Air Filter Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003e581007-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eMaintenance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003eWashable, Reusable and Re-Oilable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width:42%; padding:7px 12px 7px 0; border:none; white-space:nowrap; vertical-align:top;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0; border:none; vertical-align:top;\"\u003eRoad, Off-Road and Race Use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"margin-top:30px;\"\u003eWhat's Included?\u003c\/h3\u003e\n\n\u003cp\u003e· DNA High-Flow Performance Air Filter – Royal Enfield Bullet 500\u003cbr\u003e\n· Pre-Oiled Cotton Gauze Filter Element\u003c\/p\u003e\n\n\u003ch3 style=\"margin-top:30px;\"\u003eAssembly Instructions and Warnings\u003c\/h3\u003e\n\n\u003cp\u003e· Install the DNA air filter following the procedure outlined in the Royal Enfield workshop manual.\u003cbr\u003e\n· Remove the original paper air filter and ensure the airbox is clean before installation.\u003cbr\u003e\n· Position the DNA filter correctly, ensuring it is properly seated and sealed within the airbox.\u003cbr\u003e\n· Refit the airbox cover and check that all components are securely fastened.\u003cbr\u003e\n· Clean and re-oil the filter periodically using suitable DNA filter maintenance products.\u003c\/p\u003e\n\n\u003ch3 style=\"margin-top:30px;\"\u003eWhy Choose the DNA Performance Air Filter?\u003c\/h3\u003e\n\n\u003cp\u003e· \u003cstrong\u003e42.84% Increased Airflow:\u003c\/strong\u003e Delivers 122.20 CFM compared with 85.55 CFM from the original Royal Enfield paper filter, allowing greater airflow into the engine.\u003cbr\u003e\n· \u003cstrong\u003eExcellent Filtration Efficiency:\u003c\/strong\u003e Advanced four-layer cotton gauze construction provides 98–99% filtration efficiency, combining high airflow with effective protection against airborne contaminants.\u003cbr\u003e\n· \u003cstrong\u003eWashable and Reusable Design:\u003c\/strong\u003e Unlike disposable paper filters, the DNA filter can be cleaned and re-oiled for repeated use, reducing replacement costs over time.\u003cbr\u003e\n· \u003cstrong\u003eVersatile Performance Application:\u003c\/strong\u003e Designed for road, off-road and race use, providing a high-quality filtration upgrade for everyday riding and more demanding conditions.\u003c\/p\u003e","brand":"DNA","offers":[{"title":"Default Title","offer_id":39768769691706,"sku":"R-RE5N12-01","price":58.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0548\/9452\/6522\/products\/DNAPERFORMANCEAIRFILTER-RoyalEnfieldBullet5002009-21-DNA1.jpg?v=1750777709","url":"https:\/\/motorcycleperformancestore.co.uk\/products\/dna-performance-air-filter-royal-enfield-bullet-500-2009-21","provider":"Motorcycle Performance Store","version":"1.0","type":"link"}