JPC turbocharging in Thomastown. Speak to Mark and tell him Kim from Wurth sent ya.
I have had about 12 freinds of mine including myself get our broken turbos high flowed with him and they are 200000 percent happy.
One of my mates is comfortably running 289 rwkw with his one. My skyline, with just an unknown remap, exhaust, stock dump pipe, cooler was making 230 + at the wheels and ran 12.5s consistently on street tyres.
Cost is about 1200 dollars - you bring the turbo to him. He has worked in the turbo game since day one.