Okay I'm ready to start messing around with my engine tuning. I would like to have a laptop in my car for all the engine management, and tuning. I don't really know much about all this yet. Will I need a special ecu to start off with and then what kind of tuning programs are out there that will let me do this? I want something I can download onto the laptop and change my map settings, and keep an eye on everything while in the car driving.