depends what engine he is running if its a crappy old d-serious who the F cares if he screws it up. go buy another one for cheap and get it back running. now if he spent a lot of money in his car and turbo set up and hes slapping a fmu in there now we all can say wtf you thinking retard. for now lets see what he can do with the fmu. unless someones sending him free injectors and someones going to tune his car for him

 

someone could burn him a safe basemap, and send it. but i'm keepin my injectors :P