X2
Unless you really know what the hell your doing and are comfortable with a tuner then it's feasible.
No one really runs a sts style kit/rear mount turbo on these cars because it's a lot more $ and there is hardly any room to run the piping under the car as well as running a separate oil system because the turbo is sitting too low.
If you really want to, look into a Z3 turbo kit and a a/a intercooler and i would stop right there. Anything past that and your looking at a lot of trans work and reliability issues. Just a base turbo kit on these cars is enough to keep you happy and easily run some good times.