Injen Cold Air Intake POLISHED Mazdaspeed 3 2007-2013

SP Intake Systems
These Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A/F Ratio. The SP series does not limit itself to just a Cold Air System or Short Ram System. The MR Technology process has its effects on both types. SP is The World's First Tuned Intake System.