View Installation Example at youtube.com/watch?v=lh8nxI5uiDs Tube inside diameteter 3" / 76mm Cabon Fiber filter enclosure / heat shield dimensions: 11" Long, 6" Wide, 3" Opening, 3" to 3 1/2" Step-up BlingLights filters are completely shielded from drawing in warm air with the 360 degree attractive genuine carbon fiber heat shield. Built-in filter uses the newest open top design for increased air flow over conventional cone filters BlingLights unique non-woven synthetic filter media encased within the carbon fiber heat shield never needs oil! This means less down time between cleanings and no more chance of over-oiling. It takes the guesswork out of servicing your air filter Hi-flow flex pipe is rigid yet weighs less than that of any of the materials used by competitors BlingLights manufactures its intakes from genuine ultra-light weight carbon fiber, Carbon Fiber Reusable Open Top Fabric Filter and comprehensive photo installation instructions. BlingLights Cold Air intake systems deliver the best looks, performance, value and ease of installation than any other cold air intake. BlingLights Cold Air intakes install easily under the hood Filter can be cleaned with the K N Filter Care Service Kit