Where I live I dont see too many sport bikes nevermind 05-06 ZX6's. So I dont get to hear many different types of exhaust. Does anyone know what the quietest aftermarket slip on is? I want to save some weight and change the tone but dont want it super loud under 4000 rpm. I leave pretty early in the morning and dont want to wake the neighbors. We live in a really really quiet neighborhood and want to be respectfull.