[TranCana]

All I know is that it fit my 2014 QX-60 without issue. So, unless they changed body frame designs on the 2015 versions vs 2014 (doubtful), then I don't see why it would work. Thing is, I know the description said that it was for the Pathfinder, but with my research and actually looking under both vehicles, I found that the 2014 QX-60 had the exact same underbody holes as the 2014 Pathfinder... thus a perfect fit of these running boards on the 2014 QX-60. Can't imagine that it wouldn't work on a 2015. but maybe you could compare pics of the underbody of a 2015 model vs 2014?

APS RB-NO180S Black & Chrome Nerf Bar Bolt Over for select Nissan Pathfinder Models
I just put this kit on my 2014 QX60 last week. No problem. all the hardware included.