So you think max power across the rpms is the best tune? Interesting...
Personally I'd sacrifice a bit here and there for a car that ran smooth as glass and had better longevity. Unless of course you didn't realize that on a dyno you're measuring power at full throttle? Since that accounts for less than 10% of the time in which the average owner drives their car, it seems pretty irrelevant to me.
Go buy a 335, slap a single on it and hit a dynojet. You'll get your number and maybe that would keep you from trolling the M3 board. Then you may have the best tune haha!