I recently read an advertisement for a second generation Q series (quiet) silencer for the CF 450. Has anyone had any experience with this product or does anyone have knowledge of the performance criteria. We have serious noise issues at our local practice track so I have a great interest in finding something that will tone down our four strokes without much power loss. I don't think you can have one without the other unfortunately. I know that many have used the pro-moto Billet end but have heard mixed reviews. Thanks. We are driving from the great white north to MD this weekend. Anyone headed for the Landing?