~Help~Where to repair HKS adjustable?

[(ADVAN)]

I got a HKS damper. The things is the adjustable got sound coming out during the bumpy road "kok" kok" "kok" sound. I know of place repair adjustable but the thing is they don spare to repair this adjustable becoz the valve is terbalik .They normally repair TIEN , CUSCO or other else. So do anybody noe where to repair tis adjustable?

SMS or PM me if anybody know any experience workshop to repair tis adjustable.
012-2666679 (Edmund)

 

[nitrus]

i dunno much bout these adjustable stuffs, but hav u tried N1 Racing at Sunway ?