Got the Lund bug deflector in today and installed it on the E450 V10. Had to drill four holes for the deflector itself on the underside of the hood. The underside is plastic or fiberglass so drilling was easy. Hardest part was getting it centered and marking drilling points as the existing holes underneath the hood are not centered and don't match the holes on the deflector. I then had to drill six holes in the bottom of the deflector to uncover the mounting holes for the rubber strip that keeps rain out of the engine compartment. Took about 45 minutes in all. Mostly making sure it was centered, would close properly, and marking the holes.
The Lund on my Ford SUV was easy. Mounted in four existing holes in about five minutes. This one takes some work.
2006 Fleetwood Tioga 26Q
Toads: '15 Ford Focus, '10 Harley Softail Custom and '15 Harley Softail Deluxe
Upstate (the other) New York