help (rear subframe bushes or something else..)

[7.77]

so:

my rear bushes (powerflex for the subframe and RTAB, and bmw's for the others) have been replaced for the ring/spa trip in May.

since, i have a bad feeling of the balance of the car: my car is shaking/rolling from right to left. something like a play somewhere at the back. When i drive hard on corner, after big roll, when the car is on the suspension, it is okay. but when i change corner, there is a big movment of the car till the car is on the suspension, and after it is ok. I run PSS10 (1.5 years old), position 10 (harder). I have checked the suspension and it is ok.

i think the play comes from the rear subframe
i decided to have the subframe powerflex replaced by oem.

same problem.

please see the pictures (rear/top subframe bushe) and tell me if they are fitted in the right way:

powerflex



look at the gap at the top ??

oem (i can see the rear subframe moving when i lift the car):






if i compare with this subframe (taking on the web), they seems to be fitted on the wrong way)



please help me