Apexi boost controller

I have a apexi boost controller on my 20vt set to 1.2bar at its highest setting and i was wondering can the boost be turned up using this controller or does the car need to go in to a garage.

Yep. Thats what the apexi is for.

Here is the online manual - http://www.megaboost.co.uk/supra/mine/apexi-avcr/avcr-manual.pdf

Thanks mate thats a big help.

you will need to get the fueling checked