fuck turbod16 lol that site sucks for the most part lol go to Homemadeturbo.com to get your bearings on things. Nothing other then boost is gonna add any worth while power to your d series. Boost can be run easily, and cheaply if you build the right kit. Get your self something small like a mitsu 14b (the same turbo that made those numbers in my sig with a stock cat, untuned) OR id suggest to make life a little easier a nice .48/50 t3 turbo. You could do a nicely made kit for about 1200 if you lucky with parts, or more realisticly 1500ish. BUT i wouldnt even consider doing boost untill you knew all you could about it, because 1500 is awful lot to spend to turn your car into a paper weight.