Engine airbox contacting engine cover
 

Changed my front motor mount with new stock replacement about 10,000 miles ago. I am not sure when this behavior started but I know it is a new behavior (related to the motor mount change I don't know).

The engine airbox now contacts the engine cover in one small place and I can see the contact point. It seems to rumble things just a bit (audible and in the car). It is clearly a plastic-plastic contact rumble and nothing more rigorous or loud and clunky.

What would cause this change? I know a new front motor mount could potentially let the engine sit a bit higher, but with a stock airbox and engine cover, I wouldn't expect it would let the engine sit high enough for them to contact each other. Anybody else experience this?