I have a 91 318is. I put bavarian autosport sprigs and bilstien sports on and love them. I was able to put the back shocks on myself and had the front done. It isn't that hard. I also installed racing dynamics sway bars front and rear. The front is a pain but can be done if you just take the time. The rear is a lot easier. e-mail me if you have any questions. The handling is a ton better. If you have done so I would also get a front strut tower brace.