I will be doing APR soon , but even on a std car its worthwhile to check all is ok.
The OE dump valves are notoriously bad for failure , so its a sense check.
When the performance drops off , I can see if my boost levels change , if so I know where Ill be looking first

besides it looks cool

downside is , its an indication you have modded even when you have not.
although the connectors on Defi mean its would be 2 minutes to remove gauge for warranty work if you wanted to