Here's the doubled air dam:
As you can see, it isn't overly obvious, at least unless you're standing right in front of it. I think I need to fabricate a support for it, though, as the lower portion is only attached to the urethane upper portion, and winds up being pretty flexible. I think that it must deflect a fair amount at highway speed.
Also, you can see that I lost my blue oval, haven't remounted all of my auxillary lights (which didn't help air flow through the grille either) and haven't painted the replacement bumper cover to match the original Sport-style silver lower body. I'm on the fence as to whether I want to do that or try something completely different that I've been kicking around for awhile. But for the short-term, I had to get the van back on the road, so I didn't screw around with painting.