Here's my take:
1. This is supposed to be a forum and this thread is basically a commercial for a product. It belongs somewhere else

2. How much does it cost??? because if it indeed works, then everybody will have to have one to be competitive. That being the case, whatever it costs is how much more it is going to cost everybody to go racing. These kinds of devices are unnecessary. They simply add to the cost of racing without improving the sport in any way.