rear subframe bushings, and...

[PУCCKAЯ_e30ka]

i think that seam bmw has a good selection of urethane... i dunno bout pricing, and also I can't seem to find where/how to order...

[fporro]

what is the ride quality like with those?

well, I swaped a whole bunch of parts all at once so it's hard to tell.

[Axxe]

With urethane rear subframe and trailing arm bushings, the rear end is more "solid." It's unnoticable on smooth roads, but "thumps" over bumps and if you hit a patch of choppy highway, transfers all the vibrations into the body. It's not that bad though, and the handling increase is well worth it.