Boy what a difference the new software makes to the performance of the vehicle. There is now NO hesitation when you step on the gas, it instantly kicks on the VVT and away you go. This makes the engine a little louder but I will take that and not have the hesitation. If you have not done this make your appt. and get it done. I also got the airbag recall done. It took about 1 1/2 hrs for both to get done.