This is the same filter used in all of ACUiTY's 1891 Curl Control cold air intake systems for the 2012-2015 9th Gen Honda Civic Si. If your old filter has become damaged or clogged, this is a perfect way to get the intake refreshed and working like new. The filter features a 6" (152mm) opening, ideal to mount to a 6" velocity stack. The filter has a 5" (127mm) overall height and 7.5" (190mm) maximum width. The filter is washable reusable and features red cotton-gauze filter element construction. A hose clamp is included with each filter to help affix it to your velocity stack or intake inlet. 

• Direct replacement for the filter used on ACUiTY's 1891 Curl Control Intake Kits for the 2012-2015 9th Gen Honda Civic Si
• 6" (152mm) opening, ideal to mount to a 6" velocity stack
• 5" (127mm) overall height, 7.5" (190mm) max-width
• Washable, reusable, cotton gauze construction
• Includes hose clamp for filter
• Red filter element with black rubber