Injen is a reputable company of making high performance cold air intake & short ram intake system. Their performance air intake system is categorized into 5 different series with unique characteristics of it’s own.
1 – SP Series - 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.
2 – IS Intake Systems - The IS Series is a traditional, underhood intake system that is placed in the stock location of the factory air-box system. Each system is built from 6061, T-6 aluminum alloy to ensure the lightest design possible. Every IS system is certified or pending by the California Air Resource Board and backed by Injen Technology’s limited lifetime warranty.
3 – RD Series Race Division Intake Systems - The RD series is a cold air intake system for the enthusiast craving mid-range power. The intake tube is strategically placed behind the front bumper to acquire colder, denser air. Although most of the RD series is a one-piece design, several are two-piece designs due to the mass air flow meters. Every RD system is certified or pending by the California Air Resource Board and backed by Injen Technology’s limited lifetime warranty.
4 – EIS Series Intake Systems - The EIS Series is Injen Technology’s European line of intake systems. E is only available in either polish or black powder coat and comes with a metal E emblem for your rear trunk lid. Like the entire Injen intake line, every EIS Series intake is certified or pending by the California Air Resource Board and is backed by Injen Technology’s limited lifetime warranty.
5 – Power-Flow Intake Systems - Specially designed for high performance Trucks and SUV and engineered to the highest standards, utilizing the best technology available. Incorporating Injen’s own patent pending MR Technology proves that the PF (PowerFlow) series intake system is the world’s first tuned intake system on the market! The Injen Powerflow intake system assures the highest horsepower and torque gains within the safe factory Air/Fuel ratio limits.