oh yes! big difference.
power increase all through the rev band. turbo cut in earlier, no lag, and it revved to the redline very freely.
overtaking ability was awesome.
to get to 170bhp will be costly. You will need a new clutch as the standard clutch is rated to about 250/260 lbs/ft.
Then a turbo of a PD130/150 and uprated injectors to get the fuel in.