since you are going to get it redone.
Can you please get a "as it is right now" dyno sheet showing power x rpm and boost
and one when he is finished with same stats.
Just so people can see the difference between FMIC and no changes to FMIC and retune.
then they can also decide if it's worth it or not.
like you said, top end may not change, but the midrange might.
Also, if you have a dyno sheet with the way the car was with same mods but with the R34 SMIC it would be a good comparison too.