Louis, did you end up replacing the front with Sachs or Bilstein HDs? I am having the same dilemma. No idea what to get.

For the rear I am tempting to go with Bilstein because the cost.

Somebody stated on another thread that if you have rear air spring in the back for the 00-03 models it means the X is equipped with sport suspension. Although my car has rear air springs I called the dealer to confirm and based on my vin the car has standard suspension. I am a bit confused but I guess I have to go with what the dealer says.