i dont know exactly were to put this so i went with suspension...so when i turn my rx8 seems less stable i am not making super fast turns...but one time the bak wheels kind of moved out of control

 

hmmm....not much of an explanation of the problem but ill say the alignment, camber adjusment, toe adjustment, caster aligned, tire is bad, strut on the rear might be blown ... or pretty much just get your suspensions checked and inspected thoroughly. and if everything is fine then its your driving lolol :X