Had to wait a couple hours before I could listen to the new Cones. The instructions called for RTV to be applied with assembly. That was news to me. Well I went out on some city and highway roads to get an idea of the noise and throttle response. And I do have to say that I am very pleased. They're definitely louder...but not too loud. Any louder...and I think they would start sounding raspy. And they have just enough burbling on deceleration to keep me happy. Throttle response is a little crisper. And while a touch of the lumpy bottom end is slightly down...the engine pulls smoother and throttle matching on downshifts is a breeze. I'm still learning this bike. But riding on the streets at 7 or 8/ 10ths is fun as all get out.