Really a sad/bad experienced. I have been using this adjustable for about 2 years + and it served me well and I am "happy" of this product although that's pro and con. I called distributor to inquiry about...
My SSQV cannot put on low boost car..at least 1bar n above,if not it won't bunyi...-Rm450neg.
I just change my filter about 1month ago..still green..-Rm180neg.
Just pm me or contact at 016-9130058(syanid)
I'll put on...