NA is definitely more about fun than peak power numbers. There's something about an n/a car that's fun to flog, especially with shorter gears. Short gears are what make n/a cars fun.
BRR is right about moving the power around. My last set of headers made great top end from 4500-6k. My newer headers have a meaty torque curve from idle-5500. However, it's nothing like a turbo.