truthfully I didn't even think about a rear STB, but hind sight is 20/20. I really don't feel any handling problems with my "heavy butt" at all wasn't looking for the suspension change when the stereo went in, also was only the 3rd week of owner ship so still was learning the car, but compared to my aurora, the SSEi is MUCH firmer all around, that aurora did ride like a dream, but was really very floaty, now the ssei I feel bumps I never felt before, not bad at all and dosen't bother me in the least.

I LOVE my heavy ssei