I guess it's possible, all i know is what aamco said.It never shifted all that great when i got the car.I mean there were never any problems before, but doesn't feel like there is a kit in there.I hope not cause i just ordered one today from intense.I still have alot to learn our cars.I'm sure i'll have ALOT more questions really soon.I never said,I have a 99 gtp stock except for a kick a** fwi. It has 135000 miles on it now it wasn't taken very good care of before,but it's WELL loved now.