Interactive exhaust valve

[Red Mist_imp]

Not to knock EXUP or Yamaha RM, but if there's a Yammie with a flatter, more perfect torque curve than the CB's, I'd like to see it.

But of course, our CB1100 with a proper exhaust power valve would simply retain its fabulous low-end and midrange, but have a more ferocious top end!

But of course, our CB1100 with a proper exhaust power valve would simply retain its fabulous low-end and midrange, but have a more ferocious top end!
Like mine.

But of course, our CB1100 with a proper exhaust power valve would simply retain its fabulous low-end and midrange, but have a more ferocious top end!
Like mine. Smart aleck.