Yep, we (Karl and Me) thought that it might be something else, but as a stage 3 on greens and a T34 it made 327bhp and good torque, all we did was put in grey injectors and the T4 and it ended up as it is now, so don't think the problem is with the engine. The intercooler has been checked, and no leaks, wastegate appears not to be leaking, but will get vince to check it out.