I have rebuilt a VG30 turbo with steel wheels and it made an eas y 200kw, however if you rebuilt either yours or a VG30 it will not be much different. However remember if you change the turbo you will need to retune your computer to make the most of your change, if you dont you actually make make less power. So change one thing and you will have to change other parts as well nothing is a simple plug and play to get the most out of it.