I was planning on boosting my D15B7, but after getting a compression test and finding bad compression in cylinder 3, I couldn't go through with my plans. If you have done a compression test and you know first hand how well your motor was taken care of. Then by all means turbo the sh*t out of it. But I would recommend not going over 10psi and for driving around town, I would recommend 7psi. With a D15B7 and a T3/T4 pushing 10psi, tuned correctly; you should be pushing 190hp or more. If you get a custom exhaust where you have a valve that opens and closes, and a switch mounted on you dash, you can make a shorter straight pipe come straight off the down pipe and just go out the side of you car, for when you're at the track and then when you on the street you can have the valve closed and the exhaust gases will exit you original exhaust system. Just an idea. Hope any of this is helpful. Good Luck.
