had it fitted today by jonce :bow: the prob we got is in low the bost goes up to9-10 psi then drops to 7? hi no prob.

also my autometer boost gauge reading doesnt match that of the profec, just used the pipe supplied with it where as the profec is plumbed in with 4mm hose will i have to change gauge to 4mm?

in hi profec reading 113 so 11.3 psi gauge reading 12-13 hard to see when driving lol

???

btt

I think you need to get the controller set up correctly, I can give you the setting I use on my profec B II if you like. I have mine set to 9.5psi in LOW and 15.5 in HIGH.

As for the differant reading on the autometer boost guage, not sure if its a good idea having two guages and would imagine the profec would be more accurate.