Yes, they ran the whole trail from start to finish. Only thing they changed was the tires, and fiddled with the electronics so that A-TRAC worked with the locking rear diff. Normally it's one or the other, not both together. The rock sliders are in fact OEM, and the rig's frame is built for them specifically. They're made to take abuse. Undoubtedly aftermarket will be stronger and better, but they're a legitimate attempt from Toyota.