Yes i do have the MY01 medel, are you saying they run 1 bar as standard or they should be ok to increase to 1 bar.

Obviously i dont want to damage the engine but i know i can increase the boost to a point that the stock ECU will handle.

Kato - Your right the best thing to do is to get a proper tune and remapping of the ECU. this will be the very next step. No point on remapping the ecu when their is no boost control.