I drilled mine
I used the same size faring and I agree it is too small.I drilled my roof rack where there is an existing hole on top.Drilled through the bottom of the bar and just bolted the yakima cross bar to my roof rack.I originally put the bar on top of the roof rack,but that made the faring stand up to straight.I added a bar to the bottom like yours and attached the faring there.I now have a bar bolted to the top and the bottom.I may have to get the little clip on faring for the top bar as it still makes wind noise.
I bolted two more yakima cross bars on top.One in the back and one in the middle.I need them for my kayaks and canoes.Funny when your loaded up with boats the cross bars don't make any wind noise.I guess when they are empty the wind noise is just telling you to load up and go play.Sorry no pic's,I'll get my camera out today and take some shots.
When is the factory air dam and lights coming out ?I think that would work better as it goes all the way across.Cheers.