I've been asked for pictures several times, and here they finally are.
I was under the car changing the oil and wanted to change the mounting hardware around a bit, so I figured I might as well snap some pictures. Please note that the panel has been on the car for several thousand miles, so it's dirty!
First of all, here's the panel itself:
Here it is next to the piece it replaced. Note that I cut the vertical sides off the old "underpanel" and reinstalled them, more on that in a second:
Here are the pieces I cut off the old plastic undertray. They mount very securely, with two mount points at the top, one at the front, and one at the back, and they keep a lot of road gunk from being thrown up into the engine compartment. I highly recommend doing this. Left (driver's) side, then right side:
Next comes the mounting points. Important note:
my panel did not come with mounting hardware so my setup will look a bit different than the Beatrush pieces. First the front: the holes I used are exactly the same as the Beatrush hardware uses, and are easily accessed once the old undertray is removed. Another important note is that
the holes are directly beneath the radiator, so be careful that you don't use too long a screw or it could puncture the radiator! No I am not kidding. The mount points are circled in red:
At the rear, the Beatrush hardware appears to use a U-shaped extrusion to extend to the mounting hole (marked with an "X" below). I didn't have that so I did something very, very expedient: I drilled a hole straight into the crossmember and tapped it to the threads of my mounting hardware.
It works quite well and is very secure because the crossmember is triple-thick steel at that point. My mount point circled below.
The Beatrush U-shaped extrustion lifts the back of the underpanel away from the crossmember, so I decided to add standoffs to my rear mount points just in case there was a technical reason (like airflow) behind the Beatrush mount. This is a shot of my standoffs, nothing more than a couple of pieces of ~1/2" thick plastic:
And finally, the moment you've all been waiting for:
