bro amuroray, i can tell u what's wrong with Ecotint. I purchased a toyota vios from toyota branch recently and i wanted it to be tinted with ray barrier.. salesman price coz my brother is the salesman but my bro told me that most of car dealer wouldn't want to send their car to ecotint nowadays due to fake ray barrier with a different colour that they are selling and still claims that it's from sumitomo. I can confirm that it's not only me that knows this. My friend's car was tinted somewhere in july and the shade of his ray barrier was blue in colour! he said he's going to address this in a way. So now my car is tinted with vkool instead. Hope this helps.