For visibility, Skene Photon Blasters. You'll pay entirely too much, but you will be seen and occasionally people pull over for you (I'm mistaken for an officer quite frequently, partly due to these.) Mine are fork mounted and have tolerated a stunning amount of abuse. Kiss them with SC1 or Plexus and they will stay clean. Mostly.
For noise, FIAAM Freeway Blaster Hi-Tone. It's a bit thick so the body may not fit behind the radiator. Mine is outside under the crash bar bolt, aimed down. Loudest damn thing I've ever heard. When deployed, drivers do jump a bit. If you add the companion low-tone horn a relay is required as together they pull more zap than the stock horn.
Being slow doesn't make a boring bike. I had a R1 which I thought was boring. Boring is a bike that doesn't speak to you. If you like what your bike is saying let it's voice take you to far flung places. - Vertical C