According to the specifications i found, the difference between the turbo 9000 hatchback, and the 9000 S hatchback, a STOCK 9000 turbo is probably running 5-6 psi of boost. Is this correct? if not, what is the stock boost setting? Im not real sure about how these cars are set up, but i know on most turbo cars, you can just get a boost controller, and raise the boost level. Is this possible without the ECU swap? either way, whats the highest PSI that stock internals could SAFELY take? Thanks for your help.