Anybody ever tried this little gizmo?

In theory, seems like a good idea. But nobody I saw mentions Et slip differences after the swap

Thompson Performance, LLC
Imo- That's what I was waiting for myself. You can tell me all day that it works but if it's that simple to install they should've done this at the strip for real world performance. Neither one of those guys even demonstrated a little street test to show the lag and then lag gone. Quite honestly I was waiting to see this in a J.C Whitney catalogue.