Had new Bilsteins from Dali Racing installed on my '91 yesterday..Wow what a difference..The stock shocks were original with 58k miles on them...As others have mentioned, you really can't tell how far your shocks have degraded until you slap on a new set...The car feels so much more stable at high speeds and in high g corners...At normal cruising the ride is super smooth..Also impressed with how well the Bilsteins ride over rough pavement.