Sachs
Just check all the posts. Have them on my car for about a year or so and love them. Great on the track, but not that harsh on normal roads- this is probably due to the progressive spring setup. There is no real difference is the ride quality under normal driving conditions, but the suspension stiffens up in nicely and predictably in turns. If you run a lower profile tire you will feel every pebble and lose that nice luxury ride. I normally run the stock 15” wheels and change over to 17” for the track (not staggered). There is a noticeable difference with the 17’s. Car handles better, but the smoothness is gone.
Chip
'92 535i 5sp
EAT chip, Sachs kit, RRT sport control and upper thrust arms, SS brakelines, Camber plates, Subframe inserts, 3.64 Diff, M5 (3.6L) calipers.
'87 325iS