Injen 06-11 Honda Civic Ex 1.8L 4cyl Black Tuned Air Intake w/ MR Tech/Nano-Fiber Dry FilterThe Injen SP Series Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A F Ratio. The Injen SP Series Intake System does not limit itself to just a Cold Air System or Short Ram System. The MR Technology process has its effects on both types. The Injen SP Series Intake is The World's First Tuned Intake System This Part Fits: Year Make Model Submodel 2006 2011 Honda Civic DX 2006 2011 Honda Civic EX 2009 2011