Eurocopter Malaysia is a sort of "low cost" subsidiary of Eurocopter, so pay rates are not on the mega European (or presumably Saudi) scale. What you get depends on your experience and how good your bargaining skills are. If you are Dauphin/Squirrel/EC120/135/155 etc qualified you are likely to be KL based. Super Puma qualifications are likely to result in a Miri or Kerteh posting in support of the offshore industry. The Subang facility is expanding all the time with four hangars at present and more planned.
Cost of living in Malaysia is very competitive so the lower salary is not a problem unless you are saving for a retirement elsewhere. It's a nice place to live generally.