06-11 Honda Civic Si 2.0L L4 K&N Typhoon Cold Air Intake Kit + Filter Silver 69-1014TS K&N's easy-to-install Typhoon air intake system replaces the restrictive factory air filter and air intake housing delivering a guaranteed power gain. The low-restriction aluminum intake tube comes in a silver powder-coat finish. Includes K&N High-Flow, Washable/Reusable Air Filter. Street Legal In All US States: Yes, Exc. 2011 Honda Civic Si, CARB EO Number: D-269-37 , Replacement Filter: RU-5147, Filter Size Inlet: 5" Vehicle Application: Honda 2006 2007 2008 2009 2010 2011 Civic Si 2.0L L4