You shouldnt have any problems whats so ever.
BUT you should then also get bigger injectors, bigger fuel pump, an after market ECU to tune the car.
Dont just put a bigger turbo on a stock car.
It all comes down to the tune!! If the tune is crap and you are blowing smoke, or running to rich or lean then over time it will cause problems.
Make sure your tuner knows what he is doing. Hopefully hes done this before on the same car!!
Many people on these forums run hi-flow turbo's with no problems.
Just make sure you got the supporting mods!!
Gdluck