If I was half as literate as Mike, I would have (tried) written that, word for word
In almost any motoring effort, the 'best' horsepower anything usually gives you 5% or so at the very top of the RPM range, where actual peak horsepower is measured. If you're going for lowest quarter mile ET or the highest trap speeds, you're in luck because that's what these sorts of improvements give you
But if you want to ride it or drive it in the real world, a little more grunt in the midrange would be so much more useful . . . . and you'd actually get to make use of it everytime you ride . . . . not just when the law is chasing you home
But . . . . if you just *have to have* a 6 into one to off-balance your CBX, there is nothing like a Schule . . . . 6 into 3 into one carefully tuned equal length pipes and all in beautiful stainless steel
Don