Why have manufacturers not looked into new ways of opening and closing intake and exhaust valves? Koenigsegg has free valve which is pneumatic but why is there no electro magnetic valves? Couldn’t in they in theory use a voice coil of a subwoofer and it’s magnet to time the valves position for maximum efficiency and power? To tune valve timing they could literally just play a slightly different tone or frequency. Anybody see where I’m coming from?