yeah, at 100k all i did was replace some worn out bushings. chances are these havent been looked at since the car was built, so i would suggest you look at replacing them. if you want the best ride quality, go with stock bushings. if you want better handling and are willing to sacrifice comfort, go with polyurathane mounts.
bushings to replace are:
- front sway bar bushings
- upper and lower Spring isolators (all 4 springs)
- front control arm bushings (might be a good idea to get 03/04 cobra control arms...better handling, stock feel, and better turn radius)
- rear upper and lower control arm bushings
- power steering rack mounting bushings
and if you havent already, get some full length subframe connectors. after 100k miles of driving, you can bet that the chasis has flexed and isnt as stong as it once was.