I know most of the ebay "chips" turn out to be a 4.7K ohm resistor they tell you to install in your o2 sensor or MAF sensor but I found these and they actually look like ECU chips but don't they have to be installed in an ECU for the burning process? My question is, do they even look legit?

http://cgi.ebay.com/ebaymotors/5-CHI...QQcmdZViewItem