what he said... especially since getting chip'd, I notice a big difference in feel off the line with T/C off. I never had the light flash at me but once when I did a power slide around a right-hand turn on wet pavement and broke the back-end loose a bit (weeeeeeeee!), but it's obviously doing SOMETHING cuz the car is just plain faster with it off. I'm sure there's a techno explanation (maybe Jamikest knows :?: ).