I purchased an OEM bra from a forum member last Spring. It was unopened new-in-box and came with all the hardware.
There was no drilling for the install, just remove a few screws and replace them with screws that have snap-on heads for the bra.
The Solstice looks great with the bra, but I found that it does cause the car to run about 5 degrees hotter on the highway, and 10+ degrees hotter in stop-and-go traffic.
I had planned to use it on long distance road trips, but don't because of the temperature rise.
I'll put it back on this winter and try it again.
An option would be to trim the netting from in front of the grilles, but I believe that would ruin the look and destroy the integrity of the bra - allowing it to stretch and warp out of shape.
I ran it today on a 2.5 hour interstate road trip at 80 mph. Temp ran average 194. On the same trip with the bra it would run 198-200.
Ambient temps in South Alabama have been 100 degrees (Heat Index 105-115) for the past week or so. Today was no exception.
(Sadly, it's been too hot to run with the top down on casual cruise days!)
Just An Ordinary Average Guy
With A Super Cool Car!