Yea you can add turbo. I read they say it's best to set it at Honda's spec before installation. For turbo you have to set it lower. I guess it's performance difference.
you can turbo any vehicle, for older models you would have to do more than basic maintenance like spark plugs and what not. valves, pistons, cams, everything. do it right the first time, or dont do it at all lol. but if your just doing basic upgrades you'll be alright.