Not acording to the write up. In my opinion yes they work and are what they say they are. All the seller will have done is copied the settings from a well know chip company like superchips and reproduced them. Its really very simple. I had a friend who did the same with a 386 computer and a little chip box and software. Dont expect massive gains but at the end of the day its only £22. For that money id be very happy for a little increase and smoother power delivery with less digi lag.