On my R33 Gts-t S2, I have just installed a FMIC, turbosmart BOV, and a turbosmart Dual stage boost controller. Apart from that my car is standard
on the low setting its wont go below 9psi. and on high it is 11psi
i want low to be &-8 psi but the tap wont go lower.
is this due to wrong installation or a boost creep