This was meant for the factory 08-12 Impreza WRX cross bars, but it did not come with the mounting hardware. That comes with the cross bars themselves which I have sold.
I completely forgot about the key, I do have the key, however after I saw your post in my email, I tried locking/unlocking the unit and I cannot get it to lock. (Luckily its unlocked right now)
I have emailed Yakima about a replacement core/key and I will get back to you. If you don't care about the key/core I will still sell it and you can purchase a replacement from Yakima.
Thanks for the info... I looked into it a bit more and while this is a great deal I don't think this particular mount will work super well with my particular bike(s).
Again thank you... and this is a pretty good deal for anyone with more conventional style bicycle frames.
The crossbar attachment can be bought separately. Basically you have to tell the guy in parts whether you have a wing type cross bar or round or square.