I have gotten a lot of responses to my fiberglass project asking what it sounds like. To clarify, I don't think it sounds as good as a nice aftermarket system (twobros, etc) but I do know that it saves weight and below hyperdrive its so quiet you can barely hear it with the road noise. To spare you the hassle of listening to several minutes of road noise, its mostly Vtech with a few runs up the lower gears. I used a GoPro Here 2 on the chin bar with a sealed case. I'm considering a few below and above vtech ride by clips in the future. [video=youtube;u68akijsUxA]http://www.youtube.com/watch?v=u68akijsUxA[/video] -Drew