i got safc2 tuned with 7psi of boost atm, just by grounding out the standard boost solenoid, FLYN front dump pipe, 3" metallic hi flow cat, 3" kakimoto cat back zorst, hybrid fmic, k&n hi flow panel filter and im makin 178rwkw. i just bought an R32 GTST wastegate actuator which will raise my boost again and im told by my tuner, Ray @ RE Customs that i should see around 190-200rwkw with my mods. if u wanna go into 210-220 range you'll need a hi flow turbo, bout 12psi and a piggy back like an SAFC2 or full ecu.
hope that helps ya out