for vxr injector and remap for them, also had the vxr amm
courtenay cs2 map was 265/270 - actually was 250/250 when rr at regal due to the courtenay actuator vibrating due to a thin mounting bracket causing boost drops.
injectors in, remap on, new actuator (vxr item) and afm - a few road tests and rolling roads after to sort the niggles
the outcome: near enough 280/320
i also had the switchable boost button so i can limp around on 210bhp for economy or flick it to the whole 280
i will have to say despite not being impressed with regal in the past they exceeded anything i could have asked for - my wish was there command - so hats off to them