We Have a GQ TD42 thats turboed.
400+ klms and counting.
Just do the usual, Turbo/cooler,H/D radiator ,pyro guages etc.
Get it tuned and enjoy.
I have a mate with a non turbo one and you use a good percentage of the throttle
to get going. I use half of that and get to the same speed a lot quicker easier.
Did think of selling to up grade a few mths ago but did not want to start again.
Cheers Ian.