Buick Performance Chips

Has anyone ever gotten one of these Performance Chips from Ebay or heard anything about them. I found this one on ebay for a little under $30.00....

http://cgi.ebay.com/ebaymotors/1996-Buick-Regal-3-8-L-V6-3800-PERFORMANCE-Module-Chip_W0QQcmdZViewItemQQcategoryZ33597QQitemZ800664 1506QQrdZ1QQsspagenameZWDVW

any ideas if they really work???

I doubt it. Looks like a waste of money to me. I noticed it hooks up to the intake air temperature sensor (IAT). All it is doing is sending a false signal to the PCM to make it think the intake air is cooler supposedly giving a performance increase. You could do the same with a $1.00 resistor.

sounds good where do u think i could get some of those???