2014 Subaru Impreza WRX/STi 2.5L 4 Cyl.(Turbo) Wrinkle Red Cold Air Intake w/ Heat Shield by Injen (SP1205WR)PART# INJ SP1204WR
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.