Wait a sec....
Who said ANYTHING about design? Perhaps you might want to reread post 1.
The mechanic didn't say all M96 motors were trash, just the 2.5L motor.
I recommend putting some screens on the radiator intakes. That's an aftermarket bumper so you'll probably have to make some to fit. You're also going to have to remove the bumper to do that. That would be a great time to clean out between the radiator and condenser.
Not sure how closely you've been watching the weather but I've heard the weather person say as much as 45 inches in some spots. That's the extreme but lots are predicted to get 24 inches. I highly suggest getting your boxster under some cover to keep from water getting inside the cabin and ruining the immobilizer under the seat.