There is no safe Power Adder. Period. YOu get what you get. Your mind-frame has to be somewhere else. A car with any FI/Motor Swap is less reliable. Nitrous, S/C, Turbo, 3.0L or any combo will make the car much more fun, but be aware of what you are getting. Pay the car off and then do the changes. The Turbo with a 3.0L is the way to go if you want the most power.