looking at that dyno sheet, i'd say the car isnt being pushed nearly as hard as it could,
with a turbo car- when you reach the limits of the turbo you should have a peak in more of a triangle shape rather then a wide gradual spread. and whats with cutting the run short at 5600 rpm? 2.5's have at least another 1000'rpm left in them...

i'd call for more boost, or at least you need more dyno time to get that tuned properly

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