Originally Posted by E82tt6
Worst part is the N54 powerband in an M... Torque starts falling off after 5500, I'll bet this thing is gutless over 6k.
This is a tuning thing moreso than a necessary downside of a turbo. Look at some of the tunes for the N54, they don't fall flat on their face as they reach high rpms. The downside is going to be redline, which will invariably be lower in a turbo car than an NA car.