I'd like to know what the smog thing actually does to hurt the motor. I still have the system on mine and I've noticed that when I get off the throttle after winding it out, when I get back on the gas it takes it a minute to pick back up. I wouldn't call it a hesitation. The motor try's to rev up but no power. Its like there is something restricting it. Does the AIS system have anything to do with that and if not, what does it affect?