{"product_id":"k-n-high-flow-universal-clamp-on-air-filter-ru-3580-3-flange-5-height-washable-reusable-performance","title":"K\u0026N High-Flow Universal Clamp-On Air Filter RU-3580 — 3\" Flange, 5\" Height, Washable Reusable Performance","description":"\u003cp\u003e\u003cstrong\u003eThe K\u0026amp;N High-Flow Original RU-3580 is a washable, reusable universal clamp-on air filter designed to boost airflow and last the life of your vehicle.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis tapered, round clamp-on filter fits applications requiring a 3-inch flange diameter and 5-inch overall height, delivering improved airflow with durable construction and easy maintenance. Built with multiple layers of premium cotton gauze and a pliable rubber flange, the RU-3580 is engineered for secure mounting, vibration absorption, and long-term performance without frequent replacements.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this clamp-on filter improve engine breathing?\u003c\/h3\u003e\n\u003cp\u003eThe RU-3580 uses layered, oiled cotton gauze that allows more air to pass through than typical disposable paper elements while still trapping contaminants. The increased airflow can help engines respond quicker under acceleration and maintain stable performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMulti-layer cotton gauze media for higher air throughput\u003c\/li\u003e\n  \u003cli\u003eSpecial tack treatment to capture dust and debris\u003c\/li\u003e\n  \u003cli\u003ePre-oiled and race-inspired design to balance flow and filtration\u003c\/li\u003e\n  \u003cli\u003eDesigned to reduce restriction compared to standard paper filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this universal filter fit my intake or custom setup?\u003c\/h3\u003e\n\u003cp\u003eYes — the RU-3580 is a clamp-on style made for a wide range of applications that accept a 3\" flange diameter and need approximately 5\" height. The rubber flange is pliable to accommodate minor fitment variations and clamp mounting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3-inch molded rubber flange for clamp attachment\u003c\/li\u003e\n  \u003cli\u003e1.75-inch flange length to seat on varied inlet tubes\u003c\/li\u003e\n  \u003cli\u003eTapered round shape for space-constrained installations\u003c\/li\u003e\n  \u003cli\u003eWorks with many aftermarket intakes, custom piping, and replacement needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often do I need to clean and maintain it?\u003c\/h3\u003e\n\u003cp\u003eK\u0026amp;N filters are designed to be cleaned and re-oiled at long intervals, not replaced. Under normal highway driving this filter typically only needs service every 75,000 miles or about every five years based on average driving, though dusty conditions require earlier attention.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean roughly every 75,000 miles in standard driving conditions\u003c\/li\u003e\n  \u003cli\u003eInspect more frequently in dusty or off-road environments\u003c\/li\u003e\n  \u003cli\u003eUse K\u0026amp;N cleaning and oiling kit for best results\u003c\/li\u003e\n  \u003cli\u003eReusability reduces landfill waste and long-term cost\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the construction and warranty details?\u003c\/h3\u003e\n\u003cp\u003eThe RU-3580 is made in the USA using tough molded rubber flanges and multi-layer cotton media for durability. It comes pre-oiled, ready to install, and includes a limited warranty for peace of mind.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable molded pliable rubber flange to absorb vibration\u003c\/li\u003e\n  \u003cli\u003eFour layers of treated cotton gauze for filtration strength\u003c\/li\u003e\n  \u003cli\u003ePre-oiled for immediate installation and performance\u003c\/li\u003e\n  \u003cli\u003e1-Year Limited Warranty and made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The K\u0026amp;N RU-3580 clamp-on air filter is aimed at car and motorcycle owners, performance enthusiasts, and custom builders who want a long-lasting, washable intake filter that improves airflow without frequent replacements. It's especially useful for projects needing a 3-inch flange and compact 5-inch height where a reliable, reusable filtration solution is preferred over disposable paper filters.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the RU-3580 fit a 3-inch intake tube?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The filter has a 3-inch flange diameter designed to clamp onto 3\" intake tubes securely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean this K\u0026amp;N filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Under normal highway driving, clean roughly every 75,000 miles or about every five years; inspect earlier in dusty conditions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":48083109183646,"sku":"B00062Z23M","price":54.32,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/k-and-n-ru-3580-front-view.jpg?v=1785825407","url":"https:\/\/northtrailauto.ca\/products\/k-n-high-flow-universal-clamp-on-air-filter-ru-3580-3-flange-5-height-washable-reusable-performance","provider":"North Trail Auto","version":"1.0","type":"link"}