Do you means Tein - EDFC or Cusco Electrical damper system n etc?! Where u can adjust or fine tune the damper rate from hard to soft or vice versa from inside the car?!
i just changed my car batt into the maintainance-free type 13 plates 70
before this i was using the normal car battery 13 plates 70
i noticed that the rpm drops more when i on my air cond after i changed my batt...