possible power output for tuning a non-turbo supra

[marmlr339]

this is, without installing a turbo. i can't do that because i legally can't drive turbo cars, until im off my p's at age 20. 18 now, but looking at a non-turbo model. also i can't exceed 200kw's (280hp). i know they are stock about 160, what would get me to 190's? and also, when i'm 20, could i add a turbo and get about 400 / 450hp (300 - 350kw) without buying a new car, and would it be safe, as i know non turbo engines are different from turbo engines? thanx