{"product_id":"uni-air-filter-nu-4141st-for-2001-21-honda-crf-150rb","title":"UNI Filter Multi-Stage Competition Foam Air Filter - NU-4141ST | Honda CRF150R \u0026 CRF150RB Expert","description":"\u003cp data-path-to-node=\"5\" id=\"p-rc_d64390020a406ddd-44\"\u003eKeep your engine breathing clean and producing maximum horsepower with the \u003cb data-path-to-node=\"5\" data-index-in-node=\"75\"\u003eUNI Filter Multi-Stage Competition Air Filter (NU-4141ST)\u003c\/b\u003e. \u003cspan class=\"citation-39 citation-end-39\"\u003eRenowned as a top choice for off-road racing teams, UNI filters are engineered to deliver unsurpassed airflow, superior dirt-stopping capabilities, and long-lasting dependability.\u003csup class=\"superscript embedded\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\" id=\"p-rc_d64390020a406ddd-45\"\u003e\u003cspan class=\"citation-38 citation-end-38\"\u003eUnlike standard filters, UNI’s unique two-stage design features separate foam layers that come apart, making it incredibly easy to service, clean, and reuse.\u003csup class=\"superscript embedded\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-37 citation-end-37\"\u003eBuilt with an exact OEM-fit profile, it drops directly into your factory air box with no modifications required.\u003csup class=\"superscript embedded\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eKey Performance Features:\u003c\/h3\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\" id=\"p-rc_d64390020a406ddd-46\"\u003e\u003cspan class=\"citation-36\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-36\"\u003eAdvanced Dual-Layer Protection:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-36 citation-end-36\"\u003e The large-pore outer pre-filter captures large dirt particles and mud, while the small-pore inner filter stops microscopic grit from reaching your cylinder.\u003csup class=\"superscript embedded\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\" id=\"p-rc_d64390020a406ddd-47\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eUltra-Seal Grease Groove:\u003c\/b\u003e\u003cspan class=\"citation-35 citation-end-35\"\u003e Features a specialized sealing surface edge that blocks dirt and debris from slipping past the filter base.\u003csup class=\"superscript embedded\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\" id=\"p-rc_d64390020a406ddd-48\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eFully Serviceable \u0026amp; Reusable:\u003c\/b\u003e\u003cspan class=\"citation-34 citation-end-34\"\u003e Cleans easily using basic grease-cutting dishwashing detergent or foam filter cleaner—just wash, re-oil, and reuse.\u003csup class=\"superscript embedded\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\" id=\"p-rc_d64390020a406ddd-49\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eMaximum Flow \u0026amp; Power:\u003c\/b\u003e\u003cspan class=\"citation-33 citation-end-33\"\u003e Designed to optimize airflow volume, increasing torque and horsepower over standard stock restrictive paper filters.\u003csup class=\"superscript embedded\" data-turn-source-index=\"7\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\" id=\"p-rc_d64390020a406ddd-50\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-32 citation-end-32\"\u003eProudly Made in the USA.\u003csup class=\"superscript embedded\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 data-en-clipboard=\"true\" data-pm-slice=\"1 1 []\"\u003e*Free Shipping!*📦 We only ship to the lower 48 states. We do not ship to Alaska, Hawaii, Guam, or Puerto Rico\u003c\/h1\u003e","brand":"UpdogIndustries.com","offers":[{"title":"Default Title","offer_id":43710761697354,"sku":"NU-4141ST","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0226\/1499\/9114\/files\/s-l1600-2026-06-16T152815.393.webp?v=1781641711","url":"https:\/\/updogindustries.com\/products\/uni-air-filter-nu-4141st-for-2001-21-honda-crf-150rb","provider":"UpdogIndustries.com","version":"1.0","type":"link"}