Check out the Yakima website and the Fit my Car tool. http://www.yakima.com/fit/Information
Put in the info of your vehicle and see if the Q towers are the correct rack tower. If they are, there are specific Q-clips for your vehicle that you will need.
I have used Q towers for years and they are great. I have used the same set of tower on 5 different vehicles, just had to get new clips for each.
Hope that helps