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 ...
Cold Air Intake System; Incl. Tubing/Filter/Heat Shield/Hardware/Instruction; HP Gains +33.2 HP/Torque Gains +31.2 ft. lbs.; Polished;
SP Series Cold Air Intake; w/ HeatShield
Subaru 08-13 WRX 2.5L Turbo; 08-13 Sti 2.5L turbo 4 Cyl. Incl. heat shield w/web Nano-fiber dry Air Filter