Would this have worked?
http://cgi.ebay.com/ebaymotors/NEW-Superchips-ICON-Corolla-MR2-4AGE-Performance-Chip_W0QQitemZ8015262329QQcategoryZ33597QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

"Superchips ICON Corolla MR2 4AGE Performace Chip."

I don't know much about the SC ICON... is it one chip that can be programmable to all cars or are they pre programmed to a specific make/model?
Also isn't there a way to manually advance or retard the timing or is that by only +/- 7 degrees or something?