That is my point exactly. With the 26" short tires the pcm thinks that the rearend ratio has been changed. I have an 01 and I don't want to make a mistake and put shorter tires on just to lose performance. I'll just stick with the stock F1's until I can get a 28" tire. So the question is still out there... It would be a biotch if you put shorter stickies on and go slower because the pcm sees something not right...