I bought a 07 GT replaced the entire suspension Control arms, Bushings, Ball Joints. OEM sway bar bushings and installed Poly. and even installed KONI STR.T performance struts and shocks and a alignment, new tires and Callahan drilled slotted rotor with ceramic pads.. Now what I feel I have not felt with my 07 focus mainly because it is a front wheel can and lighter.. so what is happening is.. When I am say doing 70+mph and brake hard, but no locking up and I feel the ass of the car wanting to come high and it dives and a sway... I would consider it aggressive driving.. So a for instance... going down expressway 80 mph then go on to a off ramp, tires are not sliding and feel good, grip is fine, but if I am on the brakes feels like its sways/dives a bit.. Now only thing I can think of is Upgrade to race springs.. lower car 1.5" and get a better sway bar set or do I need to get use to this at them speeds?