2011 Honda CRZ Hybrid 1.5L 4 cyl (Manual Only) Polished Cold Air Intake w/ MR Technology by Injen (SP1585P)
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.