This made my GT handling so much better! Night and day difference. Car was lowered about an inch, I have an auto with a chip that firms the shifts and when it shifts into 2nd hard....the back end no longer goes way down, the car remains even! It no longer nose dives on hard braking, and stays flat in the corners..best $350 I ever spent. BTW, I still have that damn chirping! I was sure that doing this mod would get rid of it but it didnt. Just thought I'd share.