{"product_id":"k-n-filter-2-3-4-inch-flange-5-7-8-inch-od-base-4-3-4-top-5-inch-height","title":"K\u0026N Filter 2 3\/4 inch Flange 5 7\/8 inch OD Base 4 3\/4 Top 5 inch Height","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eRU-4450\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 024844080431\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eK\u0026amp;N Filter 2 3\/4 inch Flange 5 7\/8 inch OD Base 4 3\/4 Top 5 inch Height\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eK\u0026amp;N RU-4450 is a universal clamp-on air filter built for racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and custom intakes with 2.75 inch flange. This round tapered filter features a 5.875 inch base OD, 4.75 inch top OD, and 5 inch height for precise fit on angled or offset intakes. It delivers increased airflow for more horsepower and acceleration while trapping contaminants with four layers of cotton gauze.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour Layers of Protection:\u003c\/strong\u003e Premium cotton gauze with tacking agent forms a mesh that blocks dirt and debris for long engine life\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Maintenance:\u003c\/strong\u003e Wash and reuse, clean only every 75,000 miles or 5 years under highway driving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Pre-oiled and clamped on in minutes for instant performance gains without tools\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Power:\u003c\/strong\u003e High-flow media raises horsepower, acceleration, and throttle response\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Build:\u003c\/strong\u003e Flexible rubber flanges stretch up to 1\/16 inch, absorb vibration, last a lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePre-oiled and ready to install, washable with K\u0026amp;N cleaning kit for repeated use\u003c\/li\u003e\n\u003cli\u003eStretches to fit in-between flange sizes, secure clamp-on attachment\u003c\/li\u003e\n\u003cli\u003eShips in protective box, weighs 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eClamp directly to 2.75 inch intake tube, no cutting or modification needed\u003c\/li\u003e\n\u003cli\u003eCompatible with rubber couplers and aluminum tubing for custom setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eRacing Vehicles\/Generators\/Snowmobiles\/Tractors\u003c\/td\u003e\n\u003ctd\u003eCustom Intakes 2.75\" Flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003ctd\u003eRadio-Controlled Cars\/ATVs\u003c\/td\u003e\n\u003ctd\u003eOff-Road Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose K\u0026amp;N?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOver 60 years developing high-flow filtration for motorsports and street\u003c\/li\u003e\n\u003cli\u003eProven cotton gauze media used by millions of vehicles worldwide\u003c\/li\u003e\n\u003cli\u003eEngineered in the USA for exact flange fit and vibration resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What intake sizes does the RU-4450 fit?\u003cbr\u003e\n \u003cstrong\u003eA:\u003c\/strong\u003e Designed for 2.75 inch inside diameter flanges, stretches 1\/16 inch, works on straight, angled, or offset custom air intakes\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used in this filter?\u003cbr\u003e\n \u003cstrong\u003eA:\u003c\/strong\u003e Four layers of oiled cotton gauze pleats with chrome wire backing, flexible rubber top and molded flange\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty coverage?\u003cbr\u003e\n \u003cstrong\u003eA:\u003c\/strong\u003e 1,000,000 Mile Limited Warranty when used and maintained as directed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Box dimensions 7 x 7 x 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":40094261772367,"sku":"KNNRU-4450","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/kn-filter-2-34-inch-flange-5-78-inch-od-base-4-34-top-5-inch-height-kn-engineering.jpg?v=1766994585","url":"https:\/\/www.blackopsautoworks.com\/products\/k-n-filter-2-3-4-inch-flange-5-7-8-inch-od-base-4-3-4-top-5-inch-height","provider":"Black Ops Auto Works","version":"1.0","type":"link"}