No your wrong. I'm in IT, so I don't know anything but neither do you or anybody else in this FORUM! See that car was purpose bought to be tuned. I have mentioned another R100k going onto this build, Get that!? I'll push 200k if I want to just because I CAN. The car is a street racing car, the car is a street racing car, the car is a street racing car...build for street racing....will you get that into the brain waves now huh? Problem is when you start pushing the power the car is doing now with the little mods it has I guess I will start scaring a few guys. My car is heading in the direction of jp's. 135i here and in the states has the same turbo' I assume. I know guys that have been running stock turbo's 17-20psi 2yrs plus with no problems. But the Sa turbo's are shot according to some they don't last a week if you run 17psi according to our forum experts. Point being if you can't afford to tune a 135i don't. I can!