The CP Cold Air Intake is designed for rotated turbo applications. The CP cold air intake was designed to work as a direct fit onto the Crawford Performance rotated turbo kits and other similar rotated turbo systems. The CP cold air intake was designed with a few key points in mind, including better cold air flow from the fender well to the turbo, a lrger power band and to keep the full functionality of the MAF sensor in place. The MAF sensor also works as a temperature sensor to adjust fueling, timing and boost values in the ECU. When extreme intake temps are seen, the Subaru ECU can and will pull boost, retard timing and add fuel.