Automated default to highly tuned non-WI map
 

Often with engine management, especially aftermarket EM, you can run multiple maps. On the EM I'm working with for instance there is a Launch Control Map that automatically defaults to the base map once the clutch is engaged.

Using DDS2 to detect a no flow situation, it can also be used to send a signal to cut to a no-water injection map. This is simliar to as I have described before, except the map defaulted to is no longer just to save the engine, rather just a de-tuning without WI.

Disconnecting the power feed to a bopost dump valve is also a good way to lower boost withthe DDS2.

Both Subaru and EVO's boost pressure is controlled by the ECU.