i using normal cusco adjustable without soft hard only ho low, when i bought it, 1 side front was leaking, i send to kepong for repair and cost me around rm140 (price was last 3 year) to replace the oil seal, as the mechanic said no need the repair for both side, just can repair 1 side only, after repair no problem with handing or still very stable even just repair 1 side only. My cusco was normal size strut, if your Hyper d is on bigger strut it would cost rm2++ per side. Not sure tien service price is how much... If using ori part then compatible part, of course its expensive. I will pm u the phone no of this workshop.. hope it still using this no.