When i had it mapped i was hoping for near 400 but i am running bosch light blues 440cc and fuel was becoming an issue. It really wants a set of greys in it. Mine is setup and mapped lovely now on the blues so been reluctant to change it before i make the car stop and handle as i want.
This TT turbo and 2 bar imo would see 380-400 on a healthy engine, spec depending. I'm sure the dinosaurs on this forum would agree.