I have an ebc the gizzmo one, just fitted a jam actuator and overboost is an issue... I could put my foot to the floor with the stock actuator but now it goes up to1.1 sometimes little over. Its pretty annoying as I have to change gear early at like 4 thousands revs unless I push gently then as the revs go up i can then put the boost on, surely there is a safe setting on the ebc if anyone has one.. cheers