Yes, some people replace with aftermarket versions ..... I just used OEM .... depending on the material used, some of the aftermarket bushings make squeaking noises ....
I just purchased a 2022 SF90 and am getting considerable nocking or creaking sounds coming from Ithe suspension, appears to be coming from behind the seats. The noise comes on bumps or especially when the car flexes over non even roads. Anyone seen something like this?
Start a thread on the SF90 subforum. This 11 years old thread on a different car is not going to help yiu.