i agree that you can boost anything, but i think some of the things mentioned just crossed the line. A factory turbocharged car is nothing more than an NA factory car with a turbo kit? That's hardly the case. Although i'm a wrx owner i've got to give props to that srt-4 you were dissin. The srt-4 motor is built extremely well and has the potential to be the best 4 cylinder motor once it gets a couple years of experience under its buckle. Honda motors have any excellent aftermarket and are pretty simple to work on and can be built up to be fuckin nasty. (just look at dave's [99b16si] numbers) However, no stock bottom end b16 turbo with bolt-ons is going to pull numbers like a factory turbocharged car with bolt-ons, for the sole purpose that the factory turbo'd bottom end is far more stout and will handle way more load.
Also, you can't take a factory turbocharged car (or any car with low compression) and make assumptions on how much power it makes without its turbo. You are comparing a high compression motor (B16) with a low compression motor on the basis of NA. I'm sure if you put high compression pistons in that str-4 motor, it would make more than 160hp. When you go turbo for raw power, you want low compresssion. Low compression pistons are dogs if you are running NA. That's just common sense.