Only got rid of my 2007 Ninja ZX14 about six months ago. That thing would rip your arms from the sockets all the way to hitting the speed limiter at 300kph. Absolute weapon. Had a little work done to it while I had it and it had 190ish HP at the rear wheel. The new engine goes way harder again, why you need it I don;t know, I never rode it to it's potential though I tried at times.
Got rid of it because it was time to slow down and smell the cow shit on a ride as opposed to everything being a constant blur.