Yeah pretty much the same thing, i have a few slight improvements etc but pretty close!
It was to be an unopened engine with bolt ons and it made impressive power so i guess he didnt see the need.
If we had identical exhausts we could overlay the graphs and get a comparison, but mine behaves differently and comes on later so i cant give you an accurate answer, the mid range on mine is awesome and when it comes on boost its pretty aggressive, and that is on low boost so far, am yet to get it on high boost with the E70
How much response do you need? I think ians is around 3700-3800 and mine is around 3900..... There is the twin scroll result from Owen in the RB25 thread that is pulling full boost way earlier so you could look at that too!