I have a GS-R 2001 that I wanna turbo it, what's the best and cheapest way to do it?

i have a 2001 gsr stock, just like everybody else i want the car to be faster, but is my only car so i use it to go anywhere, what is the healthy and better way to do it, i want 300hp, or whats the best thing to do,what you guys recomend??