If you also read on they are also saying that their lift kicks in at 6800 for the 05 model and 6200 for the 03/04 model hence why they are trying to change it. Somewhere else it says that lift will only work at it's best from 5800 not 5500. ???Check out some of the ohter threads on 9thgencorolla.com of which myself and a few others from here are members. :D