Originally Posted by RCZ

I'm no expert on VQ motors just yet, but 10PSI sounds a little high for a "high compression" motor.

Also 12psi is barely, if at all, in the efficiency range for a twin GT30 setup. They must have been planning to crank that up a bit in the future like the owner wanted. They could have made 12psi with smaller less laggy turbos. Good to know though.