[petitbois]

I ordered one from Toyota when I ordered my FJ (Aug.'06), mainly to protect the front edge of the hood from chipping. It really is just a hood protector, with little of no bug deflection- the windshield still takes the brunt of winged flight.
However, the other function is to give a clearer idea of where the front of the truck is when parking etc.

I have yet to see any FJ with either the same protector as mine, or a real deflector. In summer I compensate by carry a bottle of bug solvent, a roll of paper towels, and a bug scrubber pad anytime I hit the road, especially to the cottage.
On the positive side, with 31000 km to date, I have only two paint chips, on the windshield posts, unlike the horror stories shared here about prolific chipping.

As I posted earlier in another thread, the side window deflectors did nothing to lessen the noise inside when running with the windows down, but it does allow leaving them down 1.5 inches in heavy rain without incident.