Ok I have a question and I have researched it but i still wanna hear from the guys that know best, I want to know what the good and the bad is with eliminating the balance shafts in a 4G63 engine. I talked to one of the guys at mitsubishi and he said that he gets eclipse's and talon's in the shop all the time that have had them removed and they run like crap and just beat the crap out of the motor's internals. I have also herd from other people that it's not a problem at all and won't hurt anything but I would like to know if anyone has removed them and had a problem with it or if the guy at mitsubishi is full of crap. sorry so long. any help would be greatly appricated.