i have a import 96 WRX and i have quiet a few bits left from my supra days as in.

1. SAFC2
2. Electronic Boost Controller
3. HKS FCD

im also thinking of decatting the car and fitting a performance system, at the moment i'm boosting to 0.9 what would be a safe limit to boost to?

 

i would say 1 bar is safe no more than 1.1. 15 psi

 

Most tuners remap to 1.2-1.3bar.

However, I wouldn't just crank it up - pay a few quid for a decent remap for peace of mind?