2006-2011 Honda Civic Ex 1.8L 4cyl Polished Tuned Air Intake w/ MR Tech/Nano-Fiber Dry Filter by Injen (SP1570P)
SP Series Intake System:
The 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.