AEM Cold Air Intake - WRX & STI 2008-2014 - Impreza 2.5 GT 2009-2010

A cold air intake system relocates the filter outside of the engine compartment to deliver cool air inlet temperatures. Cooler air carries more oxygen, which translates into a more intense explosion in the combustion chamber to create more horsepower and torque. But that's only part of the power equation. Tuning the inlet pipe in length and diameter to match the engine's resonance helps move more air to the cylinders (think of your engine as a big air pump), and this tuning allows us to deliver large power gains. We also monitor fuel trim correction factors and all OBDII sensors during R&D to eliminate leaning the engine out and/or throwing a check engine light. Available only in wrinkle red. Increased horsepower Tuned and dyno-tested to improve acceleration and engine sound Low restriction aluminum tubing Easy to install using commonly available tools Washable and reusable oil-free filter media AEM Lifetime Limited Warranty