laaa org shah alam ke... sama la kite.. i am based at Denai Alam.. but ill be there only on weekends as on weekdays ill be based in my other house in Sepang.. working here..

is yours CVT by any chance?

Saw some folks selling it previously at COCM FB, but can't remember who. They are meant to mount meters for Forced Induction cars, to notify on boost, oil temp and water temp. Are you going forced induction? If yes, these meters are required, and you'd need that casing.
However, there are alternatives to that 3 meters, such as Greddy Multi D/A Gauge or Informeter Touch, which you can mount somewhere else like the windscreen, hidden from outside view. Personally, I dont like that 3 things sticking out, makes the car a thief magnet, that is why I would prefer a more subtle meter somewhere else.