Whether you need to replace a damaged filter on your Sinister Diesel Cold Air Intake or if you're making your own air intake, Sinister Diesel has you covered Coming in at 10 tall and a 4 Inner Diameter and high flow filter, the Sinister Diesel Universal Replacement Filter can support huge air flow to meet any needs. We utilize an 8 - layer cleanable cotton filter media for maximum air flow and a long life. Features8 - Layer Cleanable Cotton Filter Media, 10 tall w a 4 ID Silicone Inlet, Features a Honey - comb Filter - guard that's finished in Sinister BlueClick Here for Pre - Filter