Chip for 42.5 green top injectors. Full weight car went 11.8 with TE-44. Have paperwork that shows how to set valet mode and security. With this chip, you have to go through a sequence of events; IE: turn key on/off etc. before car will start, otherwise it will start and immediately die... great theft deterrent and car ran great with it! I sold TE-44 and 42.5s to upgrade, found chip the other day. If interested, I would like $50 shipped anywhere in lower 48. Thanks, John.