I want my car to be able to run 13's on all motor. I have heard guys talking about it a lot and I am wondering how much modding and what mods were done to get 13's. Does it cost a butt load of money to get 13's? I am going to turbo charge my car, so I am not really looking to make it a high compression engine. I want to make it a 13 second car b4 I turbo it though. My car is a GTi by the way.