Diverter valves are next on my list! Hopefully have no boost leaks, yet.......as the peak reading was fairly good. Recorded peak torque and boost with Vagcom, peak boost was around 2100millibar so just over 1.0 bar I think, couldn't tell you what the MAF was reading, got an ABS fault that keeps blocking Vagcom whenever I use it so didn't get chance to check that, should be ok though cos put a new MAF on last week.
As for the difference it is fairly noticeable, an extra 45bhp will do that! The power delivery is a lot smoother now and the extra torque really does pull the car from low low down and builds the speed rapidly in any gear, really effortless to drive now.
The only down side is I'm gonna need new brakes now, keep cooking the standard ones as I end up travelling about 30mph quicker than I thought and not realising till a tad late!