To turbo your 20v, you need a good intake manifold, the stock intake won't give you any higher boost, most you can have is 0.5-0.8bar.
Blitz turbo kit i believe is stock CR because it does not touch any internals, using Blitz Access ECU.
Mafia-staff: of course 20v can bolt turbo. To archieve higher boost (i.e. 1.5bar), you'll need to have lower compression, such as 8.0.1. You may get a set of 4AGZE pistons.
Also, I am on my way to bolt turbo, now am looking only for the Intake Manifold. Anyone knows where can I get it ? I bought 1 unit from KLG for my friend. Now i am looking for another one for myself, but the tauke say no more stock.