{"product_id":"k-n-custom-air-filter-round-2-875in-id-x-3-875in-od-x-2in-height","title":"K\u0026N E-3120 Custom Air Filter Round 2.875in ID x 3.875in OD x 2in Height","description":"\u003cdiv style=\"background:#f7f7f7;border-left:4px solid #c00000;padding:14px 18px;margin:0 0 18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;font-size:1.1em;\"\u003eAbout K\u0026amp;N Engineering\u003c\/h3\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.55;\"\u003eK\u0026amp;N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K\u0026amp;N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eK\u0026amp;N E-3120 Custom Round High-Flow Air Filter\u003c\/h2\u003e\u003cp\u003eUnleash more horsepower and torque with the K\u0026amp;N E-3120 Custom Round Air Filter. Designed with K\u0026amp;N's signature layered, oiled cotton media, this filter significantly improves airflow while effectively capturing contaminants. Its durable, washable, and reusable construction ensures it will last the entire lifespan of your vehicle, making it a cost-effective performance upgrade.\u003c\/p\u003e\u003ch3\u003eSuperior Airflow and Engine Protection\u003c\/h3\u003e\u003cp\u003eThe E-3120 filter features precise dimensions of 2.875 inches inner diameter, 3.875 inches outer diameter, and a 2-inch height, making it suitable for a variety of custom applications. Installation is straightforward, allowing you to quickly enhance your engine's breathing and overall performance. Backed by K\u0026amp;N's 10-Year\/Million Mile Limited Warranty, you can trust in its quality and reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2.875in ID x 3.875in OD x 2in Height dimensions\u003c\/li\u003e\n\u003cli\u003eWashable and reusable oiled cotton media\u003c\/li\u003e\n\u003cli\u003eEngineered for increased horsepower and torque\u003c\/li\u003e\n\u003cli\u003eExcellent filtration to protect your engine\u003c\/li\u003e\n\u003cli\u003eBacked by K\u0026amp;N's 10-Year\/Million Mile Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eExperience the K\u0026amp;N difference and upgrade your vehicle's air filtration system with GGCRACING.\u003c\/p\u003e\n\u003cdiv style=\"margin:24px 0;border-top:1px solid #eee;padding-top:18px;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOften bought with\u003c\/h3\u003e\n\u003cp style=\"font-size:0.9em;color:#555;margin:0 0 8px;\"\u003eOther popular K\u0026amp;N Engineering products customers consider together:\u003c\/p\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/k-n-custom-racing-assembly-carbon-fiber-air-box-w-o-base-large\" style=\"color:#0066cc;text-decoration:none;\"\u003eK\u0026amp;N Custom Racing Assembly Carbon Fiber Air Box - Large\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/k-n-custom-racing-assembly-carbon-fiber-air-box-large-solid-base-only\" style=\"color:#0066cc;text-decoration:none;\"\u003eK\u0026amp;N Custom Racing Assembly Carbon Fiber Air Box - Large Solid Base\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/k-n-custom-racing-assembly-carbon-fiber-4in-air-box-w-o-base-large\" style=\"color:#0066cc;text-decoration:none;\"\u003eK\u0026amp;N 100-8591 Custom Racing Carbon Fiber Air Box - Large\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/k-n-custom-racing-air-filter-rectangular-carbon-fiber-4in-air-box-w-2-75in-air-horn\" style=\"color:#0066cc;text-decoration:none;\"\u003eK\u0026amp;N 100-8593 Custom Racing Air Filter - Carbon Fiber 4in Air Box w\/ 2.75in Air Horn\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin:4px 0;\"\u003e\u003ca href=\"https:\/\/ggcracing.com\/products\/k-n-ford-gm-dodge-throttle-control-module\" style=\"color:#0066cc;text-decoration:none;\"\u003eK\u0026amp;N 20-1000 Throttle Control Module — Fits Ford, GM, Dodge\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"K\u0026N E-3120 Custom Air Filter Round 2.875in ID x 3.875in OD x 2in Height\",\"description\":\"Boost horsepower with the K\u0026N E-3120 Custom Round Air Filter. Featuring high-flow cotton media, this reusable filter improves airflow. Shop K\u0026N at GGCRACING!\",\"brand\":{\"@type\":\"Brand\",\"name\":\"K\u0026N Engineering\"},\"mpn\":\"E-3120\",\"url\":\"https:\/\/ggcracing.com\/products\/k-n-custom-air-filter-round-2-875in-id-x-3-875in-od-x-2in-height\",\"offers\":{\"@type\":\"Offer\",\"price\":\"64.99\",\"priceCurrency\":\"USD\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/ggcracing.com\/products\/k-n-custom-air-filter-round-2-875in-id-x-3-875in-od-x-2in-height\",\"sku\":\"KNNE-3120\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ggcracing.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Intake\",\"item\":\"https:\/\/ggcracing.com\/collections\/intake\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"K\u0026N Engineering\",\"item\":\"https:\/\/ggcracing.com\/collections\/vendors?q=K\u0026N+Engineering\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"K\u0026N E-3120 Custom Air Filter Round 2.875in ID x 3.875in OD x 2in Height\",\"item\":\"https:\/\/ggcracing.com\/products\/k-n-custom-air-filter-round-2-875in-id-x-3-875in-od-x-2in-height\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does the K\u0026N E-3120 Custom Air Filter Round 2.875in ID x 3.875in OD x 2in Height fit my vehicle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Compatibility depends on your exact year, make, and model. Contact our experts at GGCRACING with your VIN and we'll verify before you order.\"}},{\"@type\":\"Question\",\"name\":\"How long is shipping for K\u0026N Engineering?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most in-stock items ship same or next business day. Free shipping on orders over $99 in the continental US. Tracking is provided via email as soon as your order leaves our warehouse.\"}},{\"@type\":\"Question\",\"name\":\"How do I install the K\u0026N E-3120 Custom Air Filter Round 2.875in ID x 3.875in OD x 2in Height?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Cold air intakes typically install in 30-60 minutes with basic hand tools. No tuning required for most plug-and-play kits.\"}}]}\u003c\/script\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":41456410263636,"sku":"KNNE-3120","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/3210\/2484\/files\/41ca002f60197d2c39d5dd05048a5f10.jpg?v=1721692467","url":"https:\/\/ggcracing.com\/en-co\/products\/k-n-custom-air-filter-round-2-875in-id-x-3-875in-od-x-2in-height","provider":"GGCRACING INC","version":"1.0","type":"link"}