long as u go with a major brand your gonna get a nice can... id just do a slip on.
Friend has a Scorpion slip on exhaust
It sounds good and i was amazed at the powergain of it since it was just a slip on with nothing else done to the bike. And it sounds Great.
But anyone, Tergmini or however its spelled is good, 2 brothers, Jardine... but make sure its the Rt-one can, or Yoshimura, Arata, Akropovic, Micron, D&D, Blue Flame, Muzzys,Leo Vince, M4, Scorpion, Vance and Hines, Hindle or ART and youll get a good quality can and decent sounds... Sounds will very, but power will be slow close on em all only a pro would feel the difference.
I'd go with whats cheaper or with Muzzys since they arethe Kawasaki specialts of the group like Yoshimura is with Suzuki or Graves is with Yamaha.
and Erion with Honda.