Kato is right, in what he is saying. You will need to ensure your car is tuned for higher boost pressures on your turbo, or by getting another turbo. To be honest, you should even get a tune just for swapping the exhaust over. Have a good look for the ApexI power FC
So just to clarify, the motor you have in the car now is non turbo motor? You have a 99-00, EJ20 with
ECU, which is running the standard TDO4?
Have you already got an exhaust on the car already, I see some stainless sticking out the back of your car. But that could just be a muffler I guess. That car looks like it has had some work done to it already. Custom intake manifold, custom bonnet, what's next to the alternator, on the left of it? Almost looks like a supercharger.
Take some more pics of under the bonnet, under the car. Might give us a better idea what you may already have.
Nice looking ride too.