I just had my car re-mapped recently. DSG and engine re-map.
You can just re-map the engine for power increase, you don't need to have the DSG mapped if you don't want to. However, I would highly reccommend you do. It transforms the car in it's own right. Makes manual mode a whole lot better. You get more control over it and no kick-down. You can hold gear through corners. Just makes it a whole lot more driveable. It lets you use the power better.
Having said that, you can get it done later.
