A bit of advise that I didn’t see on the instructions: you’ll come to a point to where you have to “push a button” in order to expand the links of the crossbars, The button is actually the screw and before you can push it in, you have to unscrew it about halfway out with the Allen wrench provided. You’ll end up doing this on all four ends to make it even. The trick is have the other end and already screwed down (mounted temporarily) while you pull on the other side to expand the length and vice versa.
Another issue, it states that one crossbar #1 is longer than the other and that is the one that goes in the front of the car, but if you measure them they’re exactly the same. The actual crossbars are labeled #1 & #2. It’s not obvious to find but you can find it written on the far right side underneath the crossbars (close to edge, inside the little square area). The problem is it’s black raised print, on top of black plastic.
Last advise: it is difficult to pry out the little circles from your existing roof rails where they mount too. Make sure you use painters tape or something right over where you’ll be prying up to protect the area, because you will scratch & ding it. They suggest you use 2 screwdrivers, but I found it easier to use jewelers screwdriver on one side and pry it up, then slide a coin (Quarter) on that side & While holding the quarter jammed in there start using the screwdriver to pop up the other side, this caused the least damage.
Hope this information helps, if you have any questions let me know.
Blake