Built for performance as well as looks, the K&N Typhoon Air Intake System deletes your Civic Si's restrictive factory air filter and air intake housing and replaces it with smooth mandrel bent intake piping and K&N's famous conical high flow air filter and ambient heat shield. K&N intakes are designed to dramatically reduce intake restriction allowing more air flow to your engine, which means more usable power and acceleration throughout the entire RPM range.
You can't argue with results; The K&N intake system for the 06-11 Civic Si has produced an incredible performance increase of over 7 horsepower at the wheels of an otherwise stock Civic Si. All K&N performance products are backed by a million mile limited warranty, so you know you are getting one of the best products possible from one of the most respected names in automotive performance.
NOTE: This item is not CARB legal and not for sale or street use in CA and CARB states. This item cannot ship to CA.
Honda Civic Si 2006-2011