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Injen Short Ram Intake System Application: Lexus IS350 3.5L Years: 2006 - 2008 Color: Polished or Black Part Number: SP2092 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.