A friend of mine, who used to be a engineer for audi, told me that ACS Suspension is usually made by H&R w/ ACS paint, I questioned him at first, but then, I got to talk to Roland Graf, (Owner of H&R) who confirmed that RD and ACS (Springs, or Coilover,) are usually made by H&R or another company, which i can't remember the name of. I think that guys just trying to make his buck. If you ask me go with H&R, you can't go wrong