COBB Tuning provides professionally engineered, thoroughly tested solutions and components that improve the performance and driving experience of the Subaru vehicle. The AccessPort is used in your quest for maximizing the potential of your Subaru. The AccessPORT allows you the ability to upload pre-programmed maps to the Engine Control Unit (ECU) via the diagnosis port located below your steering wheel. If you seek an even greater power enhancement, the car can be ProTuned by XX Tuning, on their world class Dynapack AWD dyno system, to provide an exact calibration to your cars specifications. Because of the AccessPorts ability to hold several maps, you can have up to three maps created to your liking. Race Fuel, High boost, Nitrous, you name it, we can tune it!