Cool. Video doesn't work though - get us some better vids. It must sound a lot like mine. But do you have any drone with your valves pre-Helmholtz chamber like that??
The valves are the same as mine, race ready. I had some binding problems with mine (woudln't open fully) and they needed replacement - let us know if yours are ok down the road.
Tell us more about your install - where did you power the valves, do you use the wireless module or a switch?