would get that in a stock D22 ZD30. make sure you set the rear tires up right and drive to the conditions.Coming out of Launceston today going up the hill past the Big 4, I started to loose the back end, in 4th gear overtaking a truck. ****, so turned the boost back another click it is now set on 3 clicks from closed. Admittedly the road was a bit wet from rain but the car has never lost traction in the rear and my tires are in good nick.
The car couldn't be making that much power just from an update to the ECU
be very careful running low boost as its the boost that cools the pistons. this is why egt gauges are important.