Probably mate as although you wont be hitting fuel cut due to a fuel cut defender or an emanage ecu, the boost will still creep to higher than the desired level. For example. I had my car mapped on an emanage blue at 1 bar CT9, when boosting through town it was fine but when you get on a straight flat out for a while, you will notice your boost creep up to 1.1 or maybe 1.2 bar