I had the car in at PBMS recently as someone beige me had been playing with the vac lines and so the car was only boosting 5-6 psi after a week they figured it out and got it back too 12psi as for the tuning side they tried to tune it but were unsuccessful as it didn’t seem to be tunable like they also thought so they were going to speak to their European software suppliers for there tuning programme and try get the codes etc to be able to do it.
As for driving with the two tribal ive been slowly figuring that out and I’ve managed to work out how to not loose the boost around the mid range and running it out. I’ve got a FMIC kit now to go on it so I’ll see what Improvments that makes and Ive found a possible EBC that is for subi’s and may also help so will try few things out and see what happens. But still going to hunt for a Z/S controller and If I manage to find one hopefully I can make something work.
I also read somewhere that you can take hose one off at the BBOD and insert a 0.8m pill and it apparently helps a lil with the change over.