GeoMetroKiller

I have read on here that the T-25 flows 8psi stock. I was wondering about lowering it to around 5-6psi. I just have a Cartech FMU for management, and I read that it wasnt reliable for more than 6psi of boost. Would it be worth it to lower the psi of the T-25, or would it be better to just buy an Apexi SAFC, bigger injectors and do the SAFC Hack? Would it be safe running 8psi on a stock d16z6? I could really use some help.