I'll have to ask the next time I'm at FCK, but I don't see anywhere in the engine bay that would feed the vents.

 

I would ask them....I just traveled 2200 miles with a few hundred more to finish my trip. The vents top and side give off heat....top vents you could cook hot dogs...lol

Gas mileage was crazy...20-21 tops doing 75 and higher..all this with a 3.9 rear...I was happy.

Local I am lucky to get 15--16.

This was my thoughts when reading this threat.

 

If you can't cook hot dogs on the side strakes then they're not expanding enough to cause any paint issue.

 

DBS side vents are cold. The DBS hood has extra vents on the hood vs the DB9 so maybe thats why the side vents are not functional?