^ Sorry no, in brushless DC motor design, you often run the transistors beyond max load, because duty cycle is low. When you increase flow, you decrease RPM, which in turn increases your duty cycle, and this can push coils and transistors beyond test conditions.
A 2W increase on a 10W pump is a 20% increase, and if you work with electronic life prediction software, the drop off is clear.
Increasing voltage will only decrease duty cycle, and therefore is often fine.
You need to watch a brushless motor on a scope to see this relationship.
As a manufacture, we do not care if someone mods there pump themselves, because it voids warranty. However if you buy a direct replacement chamber, we have no way of knowing if it has been modded.
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