I saw the ad, too. Doesn't mean anything; any dyno can be tweaked to show "gains" and dyno runs are influenced by temperature, etc.

Explain to me exactly how this will benefit any car? Especially considering that the main things that need to be ground on the ITR, the block and the stereo, are already ground? Besides, you can buy all the parts for these "ground wires" at your local hardware store for a couple of bucks.