It's been two days now since i removed the cat from my bike and now i'm noticing little changes to the way the bike is responding. The bike is stock including the headers....just the cat was removed. Anyways it seems to be confused when i first start off driving it and then it seems to correct itself after a while. It will lug some in the beginning and act like it's not getting any fuel. When up to speed..say 55 to 60 mph it will sometimes surge for a better word but overall it will smooth out after a few miles. I'm guessing it's my ECU trying to figure out what's going on with the change to the bike. My question is...will the bike keep doing this everytime i start her up or will it eventually adjust itself and stay that way to compensate for the change? Thoughts anyone?