Here is the graph which shows the runs from yesterday overlayed with the original run back in October.
The increase in power is due to opening up the exhaust which was restricting the turbo. Suffice to say James's car was not running rich as shown on the other dyno but was in fact exactly as I had set it... but then I knew that anyway
Oh and it's also hitting the 6800rpm limiter showing the dyno was calibrated correctly
Just goes to show that James wasn't dreaming that his latest upgrades had been beneficial and that the car was indeed faster on the road.