sache, you are using adjustable? if so, please do check the adjustable also...
well, if you take hard conners, as mention by pcmode, could be you chasis stress, but i'm no expert in this. So far i had taken hard connering of speed reaching 110km/j but not having this problem.....
try sending your car to the body shop reparing where the can check your chasis alignment. This shop normally do the car which have major accident wan, which normaly claim by insurance.
sincere1, wah nice road la, somemore got uphill and downhill,.....if car too fast, sure can fly la...hehehhee....