yeah they are the same, which do you have? a 155 or 147 as we have 147's i imagine it might be easy with a 155 cos it can just be mapped to run a SC straight off instead of all the messing with a piggy back chip.
if you want sumat different try this.
get a manifold off a coupe turbo a then a TD04 turbo off an imprezza take them to have the flanges suited and stick that on, plum an oil feed from ure sump into the trubo and then have it mapped i can assure you from what ive been hearing about this turbo you wont be disspleased at all they can run low boost but still give good power, its what they use on after market conversions so its not going to kill ure engine will cost about the same as supercharging aswell. just abit easyer thats all.
for supercharging use:
what you need:
Eaton M45 SC (mini cooper s)
intercooler
2' of angle iron
drill
grinder
piping
dump valve
20vt MAF or something similar
the whole lot can be had for about £400 like colin said.
make sure to put then in this sequence though so as to not have any problems with blowing pipe work,
air filter
MAF
throttle body
supercharger
intercooler
inlet
the DV will go after the MAF aswell i believe. colin has pics to of the build so if you ask hm nicelty i bet he will post some up.
hope that helps