Hey all ! I'm new on here and to my to my nearly stock R33 gtst S2. I got an issue with it, when I put my foot down and give it some, the stock boost gauge on the dash never goes to the max of 7 psi, more like a steady 3- 3.5psi. The turbo is leaking a bit of oil and I had the car serviced and checked for vacum, intercooler leaks etc. Is it the turbo thats gone? any ideas? Thanks heaps.